Virtualenv: WindowsターミナルでPowershellを使用しているときにvirtualenvを非アクティブ化できません

問題

WindowsターミナルでPowershellを使用しているときに、仮想環境を非アクティブ化できません。

環境
Windows 10 Pro 10.0.18363
Windowsターミナル（Powershell）

console pip 20.0.2 setuptools 46.0.0 wheel 0.34.2

仮想環境作成の出力

PS D:\projects\ceres> virtualenv . -vvv --with-traceback
56 setup logging to NOTSET [DEBUG report:43]
57 could not create app data folder C:\Users\Spors\AppData\Local\pypa\virtualenv due to FileNotFoundError(2, 'The syste
m cannot find the path specified') [INFO app_data:54]
70 created temporary app data folder C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21 [DEBUG app_data:32]
70 find interpreter for spec PythonSpec(path=c:\program files\python\38\python.exe) [INFO builtin:44]
70 proposed PythonInfo(spec=CPython3.8.1.final.0-64, exe=c:\program files\python\38\python.exe, platform=win32, version
='3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]', encoding_fs_io=utf-8-utf-8) [INFO bu
iltin:50]
71 accepted PythonInfo(spec=CPython3.8.1.final.0-64, exe=c:\program files\python\38\python.exe, platform=win32, version
='3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]', encoding_fs_io=utf-8-utf-8) [DEBUG b
uiltin:52]
76 symlink on filesystem does not work [DEBUG info:47]
76 filesystem is not case-sensitive [DEBUG info:28]
142 create virtual environment via CPython3Windows(dest=D:\projects\ceres, clear=False, global=False) [INFO session:52]
143 create folder D:\projects\ceres\Lib\site-packages [DEBUG _sync:21]
143 create folder D:\projects\ceres\Scripts [DEBUG _sync:21]
143 write D:\projects\ceres\pyvenv.cfg [DEBUG pyenv_cfg:34]
143     home = c:\program files\python\38 [DEBUG pyenv_cfg:38]
143     implementation = CPython [DEBUG pyenv_cfg:38]
143     version_info = 3.8.1.final.0 [DEBUG pyenv_cfg:38]
143     virtualenv = 20.0.10 [DEBUG pyenv_cfg:38]
144     include-system-site-packages = false [DEBUG pyenv_cfg:38]
144     base-prefix = c:\program files\python\38 [DEBUG pyenv_cfg:38]
144     base-exec-prefix = c:\program files\python\38 [DEBUG pyenv_cfg:38]
144     base-executable = c:\program files\python\38\python.exe [DEBUG pyenv_cfg:38]
144 copy c:\program files\python\38\python.exe to D:\projects\ceres\Scripts\python.exe [DEBUG _sync:48]
146 copy c:\program files\python\38\pythonw.exe to D:\projects\ceres\Scripts\pythonw.exe [DEBUG _sync:48]
147 copy c:\program files\python\38\python3.dll to D:\projects\ceres\Scripts\python3.dll [DEBUG _sync:48]
148 copy c:\program files\python\38\python38.dll to D:\projects\ceres\Scripts\python38.dll [DEBUG _sync:48]
158 copy c:\program files\python\38\vcruntime140.dll to D:\projects\ceres\Scripts\vcruntime140.dll [DEBUG _sync:48]
159 copy c:\program files\python\38\DLLs\libcrypto-1_1.dll to D:\projects\ceres\Scripts\libcrypto-1_1.dll [DEBUG _sync:
48]
167 copy c:\program files\python\38\DLLs\libffi-7.dll to D:\projects\ceres\Scripts\libffi-7.dll [DEBUG _sync:48]
168 copy c:\program files\python\38\DLLs\libssl-1_1.dll to D:\projects\ceres\Scripts\libssl-1_1.dll [DEBUG _sync:48]
171 copy c:\program files\python\38\DLLs\pyexpat.pyd to D:\projects\ceres\Scripts\pyexpat.pyd [DEBUG _sync:48]
172 copy c:\program files\python\38\DLLs\select.pyd to D:\projects\ceres\Scripts\select.pyd [DEBUG _sync:48]
173 copy c:\program files\python\38\DLLs\sqlite3.dll to D:\projects\ceres\Scripts\sqlite3.dll [DEBUG _sync:48]
177 copy c:\program files\python\38\DLLs\tcl86t.dll to D:\projects\ceres\Scripts\tcl86t.dll [DEBUG _sync:48]
179 copy c:\program files\python\38\DLLs\tk86t.dll to D:\projects\ceres\Scripts\tk86t.dll [DEBUG _sync:48]
181 copy c:\program files\python\38\DLLs\unicodedata.pyd to D:\projects\ceres\Scripts\unicodedata.pyd [DEBUG _sync:48]
185 copy c:\program files\python\38\DLLs\winsound.pyd to D:\projects\ceres\Scripts\winsound.pyd [DEBUG _sync:48]
186 copy c:\program files\python\38\DLLs\_asyncio.pyd to D:\projects\ceres\Scripts\_asyncio.pyd [DEBUG _sync:48]
187 copy c:\program files\python\38\DLLs\_bz2.pyd to D:\projects\ceres\Scripts\_bz2.pyd [DEBUG _sync:48]
188 copy c:\program files\python\38\DLLs\_ctypes.pyd to D:\projects\ceres\Scripts\_ctypes.pyd [DEBUG _sync:48]
189 copy c:\program files\python\38\DLLs\_decimal.pyd to D:\projects\ceres\Scripts\_decimal.pyd [DEBUG _sync:48]
190 copy c:\program files\python\38\DLLs\_elementtree.pyd to D:\projects\ceres\Scripts\_elementtree.pyd [DEBUG _sync:48
]
192 copy c:\program files\python\38\DLLs\_hashlib.pyd to D:\projects\ceres\Scripts\_hashlib.pyd [DEBUG _sync:48]
193 copy c:\program files\python\38\DLLs\_lzma.pyd to D:\projects\ceres\Scripts\_lzma.pyd [DEBUG _sync:48]
194 copy c:\program files\python\38\DLLs\_msi.pyd to D:\projects\ceres\Scripts\_msi.pyd [DEBUG _sync:48]
195 copy c:\program files\python\38\DLLs\_multiprocessing.pyd to D:\projects\ceres\Scripts\_multiprocessing.pyd [DEBUG
_sync:48]
196 copy c:\program files\python\38\DLLs\_overlapped.pyd to D:\projects\ceres\Scripts\_overlapped.pyd [DEBUG _sync:48]
197 copy c:\program files\python\38\DLLs\_queue.pyd to D:\projects\ceres\Scripts\_queue.pyd [DEBUG _sync:48]
198 copy c:\program files\python\38\DLLs\_socket.pyd to D:\projects\ceres\Scripts\_socket.pyd [DEBUG _sync:48]
199 copy c:\program files\python\38\DLLs\_sqlite3.pyd to D:\projects\ceres\Scripts\_sqlite3.pyd [DEBUG _sync:48]
200 copy c:\program files\python\38\DLLs\_ssl.pyd to D:\projects\ceres\Scripts\_ssl.pyd [DEBUG _sync:48]
200 copy c:\program files\python\38\DLLs\_tkinter.pyd to D:\projects\ceres\Scripts\_tkinter.pyd [DEBUG _sync:48]
201 create D:\projects\ceres\Lib\site-packages\_virtualenv.py [DEBUG api:60]
203 create virtualenv import hook file D:\projects\ceres\Lib\site-packages\_virtualenv.pth [DEBUG api:63]
203 ============================== target debug ============================== [DEBUG session:54]
203 debug via 'D:\projects\ceres\Scripts\python.exe' 'c:\program files\python\38\lib\site-packages\virtualenv\create\de
bug.py' [DEBUG creator:182]
203 {
  "sys": {
    "executable": "D:\\projects\\ceres\\Scripts\\python.exe",
    "_base_executable": "D:\\projects\\ceres\\Scripts\\python.exe",
    "prefix": "D:\\projects\\ceres",
    "base_prefix": "c:\\program files\\python\\38",
    "real_prefix": null,
    "exec_prefix": "D:\\projects\\ceres",
    "base_exec_prefix": "c:\\program files\\python\\38",
    "path": [
      "D:\\projects\\ceres\\Scripts\\python38.zip",
      "c:\\program files\\python\\38\\DLLs",
      "c:\\program files\\python\\38\\lib",
      "c:\\program files\\python\\38",
      "D:\\projects\\ceres",
      "D:\\projects\\ceres\\lib\\site-packages"
    ],
    "meta_path": [
      "<class '_virtualenv._Finder'>",
      "<class '_frozen_importlib.BuiltinImporter'>",
      "<class '_frozen_importlib.FrozenImporter'>",
      "<class '_frozen_importlib_external.PathFinder'>"
    ],
    "fs_encoding": "utf-8",
    "io_encoding": "cp1252"
  },
  "version": "3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]",
  "os": "<module 'os' from 'c:\\\\program files\\\\python\\\\38\\\\lib\\\\os.py'>",
  "site": "<module 'site' from 'c:\\\\program files\\\\python\\\\38\\\\lib\\\\site.py'>",
  "datetime": "<module 'datetime' from 'c:\\\\program files\\\\python\\\\38\\\\lib\\\\datetime.py'>",
  "math": "<module 'math' (built-in)>",
  "json": "<module 'json' from 'c:\\\\program files\\\\python\\\\38\\\\lib\\\\json\\\\__init__.py'>"
} [DEBUG session:55]
295 add seed packages via FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_d
ir=C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1) [INFO session:59]
296 Attempting to acquire lock 2491013030048 on C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\whee
ls.lock [DEBUG filelock:270]
296 Lock 2491013030048 acquired on C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels.lock [INFO
 filelock:274]
297 get bundled wheel c:\program files\python\38\lib\site-packages\virtualenv\seed\embed\wheels\pip-20.0.2-py2.py3-none
-any.whl [DEBUG acquire:51]
297 get bundled wheel c:\program files\python\38\lib\site-packages\virtualenv\seed\embed\wheels\setuptools-46.0.0-py3-n
one-any.whl [DEBUG acquire:51]
297 get bundled wheel c:\program files\python\38\lib\site-packages\virtualenv\seed\embed\wheels\wheel-0.34.2-py2.py3-no
ne-any.whl [DEBUG acquire:51]
300 install wheel from wheel C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels\wheel-0.34.2-py2
.py3-none-any.whl via CopyPipInstall [DEBUG via_app_data:46]
300 install setuptools from wheel C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels\setuptools-
46.0.0-py3-none-any.whl via CopyPipInstall [DEBUG via_app_data:46]
300 build install image to C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\whee
l-0.34.2-py2.py3-none-any of wheel-0.34.2-py2.py3-none-any.whl [DEBUG base:57]
300 install pip from wheel C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels\pip-20.0.2-py2.py3
-none-any.whl via CopyPipInstall [DEBUG via_app_data:46]
301 build install image to C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setu
ptools-46.0.0-py3-none-any of setuptools-46.0.0-py3-none-any.whl [DEBUG base:57]
301 build install image to C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\pip-
20.0.2-py2.py3-none-any of pip-20.0.2-py2.py3-none-any.whl [DEBUG base:57]
334 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\wheel-0.34.2
-py2.py3-none-any\wheel to D:\projects\ceres\Lib\site-packages\wheel [DEBUG _sync:48]
397 copy C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setuptools-46.0.0-py3-
none-any\easy_install.py to D:\projects\ceres\Lib\site-packages\easy_install.py [DEBUG _sync:48]
402 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setuptools-4
6.0.0-py3-none-any\pkg_resources to D:\projects\ceres\Lib\site-packages\pkg_resources [DEBUG _sync:48]
408 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\wheel-0.34.2
-py2.py3-none-any\wheel-0.34.2.dist-info to D:\projects\ceres\Lib\site-packages\wheel-0.34.2.dist-info [DEBUG _sync:48]
429 copy C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\wheel-0.34.2-py2.py3-n
one-any\wheel-0.34.2.virtualenv to D:\projects\ceres\Lib\site-packages\wheel-0.34.2.virtualenv [DEBUG _sync:48]
432 generated console scripts wheel.exe wheel3.exe wheel-3.8.exe [DEBUG base:53]
479 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setuptools-4
6.0.0-py3-none-any\setuptools to D:\projects\ceres\Lib\site-packages\setuptools [DEBUG _sync:48]
554 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\pip-20.0.2-p
y2.py3-none-any\pip to D:\projects\ceres\Lib\site-packages\pip [DEBUG _sync:48]
857 copy directory C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setuptools-4
6.0.0-py3-none-any\setuptools-46.0.0.dist-info to D:\projects\ceres\Lib\site-packages\setuptools-46.0.0.dist-info [DEBU
G _sync:48]
884 copy C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\setuptools-46.0.0-py3-
none-any\setuptools-46.0.0.virtualenv to D:\projects\ceres\Lib\site-packages\setuptools-46.0.0.virtualenv [DEBUG _sync:
1764 copy C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\image\CopyPipInstall\pip-20.0.2-py2.py3-none-any\pip-20.0.2.virtualenv to D:\projects\ceres\Lib\site-packages\pip-20.0.2.virtualenv [DEBUG _sync:48]
1767 generated console scripts pip.exe pip3.exe pip-3.8.exe [DEBUG base:53]
1767 Attempting to release lock 2491013030048 on C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels.lock [DEBUG filelock:315]
1767 Lock 2491013030048 released on C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1\3.8\wheels.lock [INFO filelock:318]
1768 add activators for Bash, Batch, Fish, PowerShell, Python, Xonsh [INFO session:64]
1771 write D:\projects\ceres\pyvenv.cfg [DEBUG pyenv_cfg:34]
1771    home = c:\program files\python\38 [DEBUG pyenv_cfg:38]
1771    implementation = CPython [DEBUG pyenv_cfg:38]
1771    version_info = 3.8.1.final.0 [DEBUG pyenv_cfg:38]
1771    virtualenv = 20.0.10 [DEBUG pyenv_cfg:38]
1771    include-system-site-packages = false [DEBUG pyenv_cfg:38]
1771    base-prefix = c:\program files\python\38 [DEBUG pyenv_cfg:38]
1771    base-exec-prefix = c:\program files\python\38 [DEBUG pyenv_cfg:38]
1771    base-executable = c:\program files\python\38\python.exe [DEBUG pyenv_cfg:38]
1772 remove temporary app data folder C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21 [DEBUG app_data:35]
1825 created virtual environment CPython3.8.1.final.0-64 in 1773ms
  creator CPython3Windows(dest=D:\projects\ceres, clear=False, global=False)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=C:\Users\Spors\AppData\Local\Temp\tmpbehz5s21\seed-app-data\v1)
  activators BashActivator,BatchActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator [WARNING __main__:21]

修正されるまでの回避策
https://github.com/pypa/virtualenv/issues/1724#issuecomment-604964446を参照して