$ git clone -n https://src.fedoraproject.org/rpms/cachelib.git /var/lib/mock/f40-build-2271675-54891/root/chroot_tmpdir/scmroot/cachelib
Cloning into '/var/lib/mock/f40-build-2271675-54891/root/chroot_tmpdir/scmroot/cachelib'...
$ git fetch origin 1bb73f1a3086a352df849b0b81de515d818fd234:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cachelib
 * [new ref]         1bb73f1a3086a352df849b0b81de515d818fd234 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bb73f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild