$ git clone -n https://src.fedoraproject.org/rpms/golang-maunium-mauflag.git /var/lib/mock/f45-build-12687-443/root/chroot_tmpdir/scmroot/golang-maunium-mauflag
Cloning into '/var/lib/mock/f45-build-12687-443/root/chroot_tmpdir/scmroot/golang-maunium-mauflag'...
$ git fetch origin e96b4590d36aa7f29355a9f264468e1d9528e78d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-maunium-mauflag
 * [new ref]         e96b4590d36aa7f29355a9f264468e1d9528e78d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e96b459 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild