$ git clone -n https://src.fedoraproject.org/rpms/plexus-testing.git /var/lib/mock/f41-build-2566850-25540/root/chroot_tmpdir/scmroot/plexus-testing
Cloning into '/var/lib/mock/f41-build-2566850-25540/root/chroot_tmpdir/scmroot/plexus-testing'...
$ git fetch origin d871731042bc3626401175216001f77cd57d3489:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-testing
 * [new ref]         d871731042bc3626401175216001f77cd57d3489 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d871731 Convert to %autorelease and %autochangelog