$ git clone -n https://github.com/xcp-ng-rpms/sudo /var/lib/mock/v8.3-incoming-10656-29208/root/chroot_tmpdir/scmroot/sudo
Cloning into '/var/lib/mock/v8.3-incoming-10656-29208/root/chroot_tmpdir/scmroot/sudo'...
$ git fetch origin af85520dcbe9e9a855448e85cea93b7170ef86e1:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/sudo
 * [new ref]         af85520dcbe9e9a855448e85cea93b7170ef86e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af85520 Merge pull request #5 from xcp-ng-rpms/8.3-XS-1557