$ git clone -n https://github.com/xcp-ng-rpms/varstored.git /var/lib/mock/v8.3-incoming-9374-28127/root/chroot_tmpdir/scmroot/varstored
Cloning into '/var/lib/mock/v8.3-incoming-9374-28127/root/chroot_tmpdir/scmroot/varstored'...
$ git fetch origin e66e6724a5085ec553022e9370a45a868b0e829b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/varstored
 * [new ref]         e66e6724a5085ec553022e9370a45a868b0e829b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e66e672 Merge pull request #5 from dinhngtu/dnt-default-keys