$ git clone -n https://src.fedoraproject.org/rpms/libgsystem.git /var/lib/mock/f38-build-side-42-init-devel-1181926-30617/root/chroot_tmpdir/scmroot/libgsystem
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1181926-30617/root/chroot_tmpdir/scmroot/libgsystem'...
$ git fetch origin 8d605f656ded730a66351010af890689a5b2838b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgsystem
 * [new ref]         8d605f656ded730a66351010af890689a5b2838b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d605f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild