$ git clone -n https://github.com/xcp-ng-rpms/sm.git /var/lib/mock/v8.3-u-abourgeois2-9697-28416/root/chroot_tmpdir/scmroot/sm
Cloning into '/var/lib/mock/v8.3-u-abourgeois2-9697-28416/root/chroot_tmpdir/scmroot/sm'...
$ git fetch origin 992754e2467e362cd69bcd99f77cd540c912a219:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/sm
 * [new ref]         992754e2467e362cd69bcd99f77cd540c912a219 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 992754e bump release for test build