$ git clone -n https://github.com/xcp-ng-rpms/drbd.git /var/lib/mock/v8.3-v-linstor-testing-10138-28741/root/chroot_tmpdir/scmroot/drbd
Cloning into '/var/lib/mock/v8.3-v-linstor-testing-10138-28741/root/chroot_tmpdir/scmroot/drbd'...
$ git fetch origin c43d12580282b4a250a6ab66b7316ab08a5ce8cf:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/drbd
 * [new ref]         c43d12580282b4a250a6ab66b7316ab08a5ce8cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c43d125 Merge pull request #9 from xcp-ng-rpms/8.3-update-9.2.16