$ git clone -n https://src.fedoraproject.org/rpms/umr.git /var/lib/mock/f40-build-1443741-23577/root/chroot_tmpdir/scmroot/umr
Cloning into '/var/lib/mock/f40-build-1443741-23577/root/chroot_tmpdir/scmroot/umr'...
$ git fetch origin 4417818289a1c1297afa51f338a1024ff51ac35c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/umr
 * [new ref]         4417818289a1c1297afa51f338a1024ff51ac35c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4417818 Update to 1.0.9