$ git clone -n https://github.com/xcp-ng-rpms/xcp-ng-linstor.git /var/lib/mock/v8.3-v-linstor-testing-10184-28771/root/chroot_tmpdir/scmroot/xcp-ng-linstor
Cloning into '/var/lib/mock/v8.3-v-linstor-testing-10184-28771/root/chroot_tmpdir/scmroot/xcp-ng-linstor'...
$ git fetch origin d0e454ac1546cd987e134b246e8d75dada4fe9ff:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-ng-linstor
 * [new ref]         d0e454ac1546cd987e134b246e8d75dada4fe9ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0e454a Add trigger to reload units for drbd-reactor