bk-trusted-macpro-2 fails to check out release branches

[fweikert]

error: pathspec '7.0.0-pre.20230128.3' did not match any file(s) known to git

https://buildkite.com/bazel-trusted/bazel-release/builds/921#0186501f-3eba-40eb-a1e2-4bdb00863c01

[fweikert]

This happened in two steps, "macOS" and "Test on macOS". In both cases I had to retry until the job was assigned to a different agent (macpro-1 in this case).

[fweikert]

I've disabled the Buildkite agent for now, since I keep running into this issue. I hope I can find some time for actually debugging the issue.

[fweikert]

Just happened again: https://buildkite.com/bazel-trusted/bazel-release/builds/1337#018d17ba-e8ac-44b1-9cff-fa644db58824

[fweikert]

And again: https://buildkite.com/bazel-trusted/bazel-release/builds/1348#018d7a61-d78f-41ac-91a3-05acdd40d77b

I suspect this might have something to do with the git mirror.

[fweikert]

I reset the git mirror - let's see if that solves the problem.