default fuzztest.bazelrc prevents instrumentation of anything under a common folder

[carpenterjc]

We have a repo where there is tooling under a folder called common.

The generated fuzztest.bazelrc includes the following line:
build:fuzztest --per_file_copt=common/.*,fuzztest/.*,centipede/.*,-centipede/.*fuzz_target,googletest/.*,googlemock/.*@-fsanitize-coverage=0

This is supposed to prevent instrumentation of just the common folder in the fuzztest repo, however it actually prevents instrumentation of all common folders including the repo under test.

This is with bazel 8.1.1 and fuzztest imported via modules.

[carpenterjc]

one possible workaround is to add -common/.*/.* which will exclude things in subfolders of common, however I think --per_file_copts are limited when dealing with external repos once you have modules enabled.