$ git clone -n https://src.fedoraproject.org/rpms/hcxtools.git /var/lib/mock/f45-build-13348-449/root/chroot_tmpdir/scmroot/hcxtools
Cloning into '/var/lib/mock/f45-build-13348-449/root/chroot_tmpdir/scmroot/hcxtools'...
$ git fetch origin a541da11ec9291ba99f439b59b5209d176e99649:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hcxtools
 * [new ref]         a541da11ec9291ba99f439b59b5209d176e99649 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a541da1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild