$ git clone -n https://src.fedoraproject.org/rpms/plasma-print-manager.git /var/lib/mock/f42-bootstrap-3533966-46428/root/chroot_tmpdir/scmroot/plasma-print-manager
Cloning into '/var/lib/mock/f42-bootstrap-3533966-46428/root/chroot_tmpdir/scmroot/plasma-print-manager'...
$ git fetch origin e5d73039767c57c9dc63ff5093824dc0f7287b39:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-print-manager
 * [new ref]         e5d73039767c57c9dc63ff5093824dc0f7287b39 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5d7303 6.3.5