$ git clone -n https://src.fedoraproject.org/rpms/golang-github-google-cel-spec.git /var/lib/mock/f39-build-2100302-50453/root/chroot_tmpdir/scmroot/golang-github-google-cel-spec
Cloning into '/var/lib/mock/f39-build-2100302-50453/root/chroot_tmpdir/scmroot/golang-github-google-cel-spec'...
$ git fetch origin 1bd0d9dfe42c897ce6f5786e163027376e7f46c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-google-cel-spec
 * [new ref]         1bd0d9dfe42c897ce6f5786e163027376e7f46c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bd0d9d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild