Kivy: Erro ao compilar svg.pyx no mestre atual no Windows

Versões

• Python: 2.7.13
• SO: Windows 10
• Kivy: mestre atual
• Método de instalação Kivy: instalar a partir da fonte, mingw

Descrição

A tentativa de compilar o kivy da fonte para mim resulta no seguinte erro:

cythoning .\kivy\graphics/svg.pyx to .\kivy\graphics\svg.c

 Error compiling Cython file:
 ------------------------------------------------------------
 ...
                 end = time()
                 Logger.debug("Svg: Loaded {} in {:.2f}s".format(filename, end - start))
             finally:
                 fd.close()

     cdef void reload(self) except *:
         ^
 ------------------------------------------------------------

 kivy\graphics\svg.pyx:469:9: 'reload' already defined
building 'kivy.graphics.svg' extension
C:\Python27\Scripts\gcc.exe -mdll -O -Wall -I.\kivy\include -IC:\Python27\include -I.\kivy\include -IC:\Python27\include -IC:\Python27\PC -c .\kivy\graphics\svg.c -o build\temp.win-amd64-2.7\Release\.\kivy\graphics\svg.o
.\kivy\graphics\svg.c:1:2: error: #error Do not use this file, it is the result of a failed Cython compilation.
 #error Do not use this file, it is the result of a failed Cython compilation.
  ^
 error: command 'C:\\Python27\\Scripts\\gcc.exe' failed with exit status 1

Suspeito que isso esteja relacionado a este commit: https://github.com/kivy/kivy/commit/ced5e6a7a6474b72722cef4e3470ed6bc58d1793. Quando eu verifico o commit antes daquele, ele compila corretamente.