$ git clone -n https://src.fedoraproject.org/rpms/plasma-discover.git /var/lib/mock/f41-build-847596-163991/root/chroot_tmpdir/scmroot/plasma-discover
Cloning into '/var/lib/mock/f41-build-847596-163991/root/chroot_tmpdir/scmroot/plasma-discover'...
$ git fetch origin 3b16fea084ac58c6668de7cb7de31ccecaf447e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-discover
 * [new ref]         3b16fea084ac58c6668de7cb7de31ccecaf447e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b16fea 6.1.5