$ git clone -n https://src.fedoraproject.org/rpms/plasma5support.git /var/lib/mock/f41-build-847487-163985/root/chroot_tmpdir/scmroot/plasma5support
Cloning into '/var/lib/mock/f41-build-847487-163985/root/chroot_tmpdir/scmroot/plasma5support'...
$ git fetch origin d2f3aa6eadce2d9e97230987e10864ea6acfcaa1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma5support
 * [new ref]         d2f3aa6eadce2d9e97230987e10864ea6acfcaa1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2f3aa6 6.1.5