$ git clone -n https://src.fedoraproject.org/rpms/libldm.git /var/lib/mock/f45-build-16459-486/root/chroot_tmpdir/scmroot/libldm
Cloning into '/var/lib/mock/f45-build-16459-486/root/chroot_tmpdir/scmroot/libldm'...
$ git fetch origin be1bd35f91198673a32c3fd8150ac6dc10fd3a07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libldm
 * [new ref]         be1bd35f91198673a32c3fd8150ac6dc10fd3a07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be1bd35 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild