$ git clone -n https://src.fedoraproject.org/rpms/python-ghp-import.git /var/lib/mock/f45-build-30878-648/root/chroot_tmpdir/scmroot/python-ghp-import
Cloning into '/var/lib/mock/f45-build-30878-648/root/chroot_tmpdir/scmroot/python-ghp-import'...
$ git fetch origin 6a63375813514b7eade8f41ece95888ef22bc263:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ghp-import
 * [new ref]         6a63375813514b7eade8f41ece95888ef22bc263 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a63375 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild