Cli: [BUG] a execução do npm está quebrada

Comportamento atual:

$ npx -qp [email protected] -c 'npm run'
start:webpack-dev-server --open
build:NODE_ENV=production webpack -p

$ npx -qp [email protected] -c 'npm run'
npm timing config:load:defaults Completed in 1ms
...
npm timing npm:load Completed in 25ms
npm run-script <command> [-- <args>]

aliases: run, rum, urn
npm timing npm Completed in 155ms

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/ahu/.npm/_logs/2020-08-23T00_18_04_815Z-debug.log

Comportamento esperado:

$ npx -qp [email protected] -c 'npm run'
start:webpack-dev-server --open
build:NODE_ENV=production webpack -p

Passos para reproduzir:

1. npx -qp [email protected] -c 'npm run'

Meio Ambiente:

• SO: macOS Catalina 10.15.6
• Nó: 12.18.3
• npm: 6,14,6
• npx: 6.14.6