$ git clone -n https://github.com/xcp-ng-rpms/varstored.git /var/lib/mock/v8.3-incoming-9402-28147/root/chroot_tmpdir/scmroot/varstored
Cloning into '/var/lib/mock/v8.3-incoming-9402-28147/root/chroot_tmpdir/scmroot/varstored'...
$ git fetch origin 5f5979ee41a9d6a6329429c1393a65a51742d657:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/varstored
 * [new ref]         5f5979ee41a9d6a6329429c1393a65a51742d657 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f5979e Merge pull request #6 from xcp-ng-rpms/8.3-import_varstored-1.2.0-3.xs8.src.rpm