$ git clone -n https://src.fedoraproject.org/rpms/qrmumps.git /var/lib/mock/f45-build-33990-676/root/chroot_tmpdir/scmroot/qrmumps
Cloning into '/var/lib/mock/f45-build-33990-676/root/chroot_tmpdir/scmroot/qrmumps'...
$ git fetch origin f8453a144f51e38e05a211e122e8bd96c61f5d8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qrmumps
 * [new ref]         f8453a144f51e38e05a211e122e8bd96c61f5d8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8453a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild