$ git clone -n https://src.fedoraproject.org/rpms/unclutter-xfixes.git /var/lib/mock/f39-build-1536285-36287/root/chroot_tmpdir/scmroot/unclutter-xfixes
Cloning into '/var/lib/mock/f39-build-1536285-36287/root/chroot_tmpdir/scmroot/unclutter-xfixes'...
$ git fetch origin 7709f9d9b204390d78d49fb3da2c847f6492f4fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unclutter-xfixes
 * [new ref]         7709f9d9b204390d78d49fb3da2c847f6492f4fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7709f9d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild