$ git clone -n https://github.com/xcp-ng-rpms/emulex-lpfc-alt.git /var/lib/mock/v8.3-incoming-10828-29343/root/chroot_tmpdir/scmroot/emulex-lpfc-alt
Cloning into '/var/lib/mock/v8.3-incoming-10828-29343/root/chroot_tmpdir/scmroot/emulex-lpfc-alt'...
$ git fetch origin 3b2ee40d2debf455a60f6587a45cac8003dd02ed:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/emulex-lpfc-alt
 * [new ref]         3b2ee40d2debf455a60f6587a45cac8003dd02ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b2ee40 Merge pull request #1 from xcp-ng-rpms/lpfc-XCPNG-3000