$ git clone -n https://src.fedoraproject.org/rpms/cachelib.git /var/lib/mock/f38-build-side-42-init-devel-985566-29065/root/chroot_tmpdir/scmroot/cachelib
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-985566-29065/root/chroot_tmpdir/scmroot/cachelib'...
$ git fetch origin 8d4e2db7e0291c38cdbdc090cde339f1414017e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cachelib
 * [new ref]         8d4e2db7e0291c38cdbdc090cde339f1414017e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d4e2db Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild