$ git clone -n https://src.fedoraproject.org/rpms/ghc9.6.git /var/lib/mock/f42-build-878619-181204/root/chroot_tmpdir/scmroot/ghc9.6
Cloning into '/var/lib/mock/f42-build-878619-181204/root/chroot_tmpdir/scmroot/ghc9.6'...
$ git fetch origin fc5bc329e0d941eefdc5f4e3f97f10f44cb09d6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.6
 * [new ref]         fc5bc329e0d941eefdc5f4e3f97f10f44cb09d6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc5bc32 epel9: default to ld.bfd for aarch64 (breaking change)