$ git clone -n https://github.com/xcp-ng-rpms/xcp-emu-manager /var/lib/mock/v8.3-u-lpottier1-10456-29021/root/chroot_tmpdir/scmroot/xcp-emu-manager
Cloning into '/var/lib/mock/v8.3-u-lpottier1-10456-29021/root/chroot_tmpdir/scmroot/xcp-emu-manager'...
$ git fetch origin d0646b89392b94828344352c547da63bead0d49b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-emu-manager
 * [new ref]         d0646b89392b94828344352c547da63bead0d49b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0646b8 Update to match the PR branch, provisional version 1.2.1