$ git clone -n https://src.fedoraproject.org/rpms/plasma-activities-stats.git /var/lib/mock/f40-build-782788-132277/root/chroot_tmpdir/scmroot/plasma-activities-stats
Cloning into '/var/lib/mock/f40-build-782788-132277/root/chroot_tmpdir/scmroot/plasma-activities-stats'...
$ git fetch origin d457d4170aa07d3a9aa57c46342b8e9d0de4593c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-activities-stats
 * [new ref]         d457d4170aa07d3a9aa57c46342b8e9d0de4593c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d457d41 6.0.0