$ git clone -n https://src.fedoraproject.org/rpms/plasma-systemmonitor.git /var/lib/mock/f41-build-847808-164127/root/chroot_tmpdir/scmroot/plasma-systemmonitor
Cloning into '/var/lib/mock/f41-build-847808-164127/root/chroot_tmpdir/scmroot/plasma-systemmonitor'...
$ git fetch origin cba03f4c472285afaa33eda7d35465fc0ef469b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-systemmonitor
 * [new ref]         cba03f4c472285afaa33eda7d35465fc0ef469b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cba03f4 6.1.5