$ git clone -n https://github.com/xcp-ng-rpms/varstored /var/lib/mock/v8.3-incoming-10678-29229/root/chroot_tmpdir/scmroot/varstored
Cloning into '/var/lib/mock/v8.3-incoming-10678-29229/root/chroot_tmpdir/scmroot/varstored'...
$ git fetch origin 0dc3fee916a2b10c539421d1b9b3a8c1e29f383f:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/varstored
 * [new ref]         0dc3fee916a2b10c539421d1b9b3a8c1e29f383f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dc3fee Merge pull request #10 from xcp-ng-rpms/pcoval/review/master