$ git clone -n https://src.fedoraproject.org/rpms/plasma5support.git /var/lib/mock/f41-build-856814-167776/root/chroot_tmpdir/scmroot/plasma5support
Cloning into '/var/lib/mock/f41-build-856814-167776/root/chroot_tmpdir/scmroot/plasma5support'...
$ git fetch origin e5024b3d0438c2ba1b77c5d11949e600302df2ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma5support
 * [new ref]         e5024b3d0438c2ba1b77c5d11949e600302df2ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5024b3 6.2.1