$ git clone -n https://src.fedoraproject.org/rpms/plasma-activities-stats.git /var/lib/mock/f42-build-3426926-45199/root/chroot_tmpdir/scmroot/plasma-activities-stats
Cloning into '/var/lib/mock/f42-build-3426926-45199/root/chroot_tmpdir/scmroot/plasma-activities-stats'...
$ git fetch origin 14ad65932d4e263cb4b3673d6a2bc934be760e8b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-activities-stats
 * [new ref]         14ad65932d4e263cb4b3673d6a2bc934be760e8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14ad659 6.3.3