$ git clone -n https://src.fedoraproject.org/rpms/qxkb.git /var/lib/mock/f45-build-34244-682/root/chroot_tmpdir/scmroot/qxkb
Cloning into '/var/lib/mock/f45-build-34244-682/root/chroot_tmpdir/scmroot/qxkb'...
$ git fetch origin c5be88dc3275813fa95f8cf5faa766d52890acfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qxkb
 * [new ref]         c5be88dc3275813fa95f8cf5faa766d52890acfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5be88d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild