$ git clone -n https://github.com/xcp-ng-rpms/branding-xcp-ng /var/lib/mock/v9.0-incoming-11051-29474/root/chroot_tmpdir/scmroot/branding-xcp-ng
Cloning into '/var/lib/mock/v9.0-incoming-11051-29474/root/chroot_tmpdir/scmroot/branding-xcp-ng'...
$ git fetch origin 6ce3226d83550bcecf24e57335e6cb3f378d64c1:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/branding-xcp-ng
 * [new ref]         6ce3226d83550bcecf24e57335e6cb3f378d64c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ce3226 Merge pull request #6 from xcp-ng-rpms/ydi/9