$ git clone -n https://src.fedoraproject.org/rpms/golang-github-google-s2a.git /var/lib/mock/f40-build-2404274-60558/root/chroot_tmpdir/scmroot/golang-github-google-s2a
Cloning into '/var/lib/mock/f40-build-2404274-60558/root/chroot_tmpdir/scmroot/golang-github-google-s2a'...
$ git fetch origin 9b45abed5c8f4b0f152a8fa41738e62d52f025dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-google-s2a
 * [new ref]         9b45abed5c8f4b0f152a8fa41738e62d52f025dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b45abe Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild