$ git clone -n https://src.fedoraproject.org/rpms/rubygem-racc.git /var/lib/mock/f41-build-819804-151913/root/chroot_tmpdir/scmroot/rubygem-racc
Cloning into '/var/lib/mock/f41-build-819804-151913/root/chroot_tmpdir/scmroot/rubygem-racc'...
$ git fetch origin b1a0f957eba251db1d3610cfde44c003d4bfea8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-racc
 * [new ref]         b1a0f957eba251db1d3610cfde44c003d4bfea8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1a0f95 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild