Re. failing Codegen JSI

fatal: detected dubious ownership in repository at '/comm'
To add an exception for this directory, call:
 
	git config --global --add safe.directory /comm

Not sure what started to cause this, but I had the exact same problem with the "gRPC-Web Codegen CI" job and fixed it by adding the following command:

steps:
  - label: 'Foo'
    command:
      - 'git config --global --add safe.directory "*"'
      - ...

In D10622#307511, @bartek wrote:

Re. failing Codegen JSI

fatal: detected dubious ownership in repository at '/comm'
To add an exception for this directory, call:
 
	git config --global --add safe.directory /comm

Not sure what started to cause this, but I had the exact same problem with the "gRPC-Web Codegen CI" job and fixed it by adding the following command:

steps:
  - label: 'Foo'
    command:
      - 'git config --global --add safe.directory "*"'
      - ...

Oh this is huge, thank you!

It also clarifies a misunderstanding I had with the Emscripten workflow. I'll put up a diff fixing that up as well.