pipe hang issue when running as SYSTEM

[Jeremy Drake]

On Fri, 25 Mar 2022, Takashi Yano wrote:

> I can confirm the sample script hangs indeed if the script is
> running as SYSTEM account. However, in my test, the patch solves
> the issue.
>
> It would be very helpfull if a simple github repository with
> github actions, which can reproduce the issue, is provided.

After much fighting with docker on windows,
https://github.com/jeremyd2019/msys2-pipe-hang-test/runs/5688176578?check_suite_focus=true