$ git clone -n https://src.fedoraproject.org/rpms/engrampa.git /var/lib/mock/f40-build-790078-136274/root/chroot_tmpdir/scmroot/engrampa
Cloning into '/var/lib/mock/f40-build-790078-136274/root/chroot_tmpdir/scmroot/engrampa'...
$ git fetch origin 83ec682c6666c562ceb40d5129c9cc1e97c2e9e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/engrampa
 * [new ref]         83ec682c6666c562ceb40d5129c9cc1e97c2e9e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83ec682 update to 1.28.1