$ git clone -n https://github.com/xcp-ng-rpms/xha.git /var/lib/mock/v8.3-incoming-9661-28381/root/chroot_tmpdir/scmroot/xha
Cloning into '/var/lib/mock/v8.3-incoming-9661-28381/root/chroot_tmpdir/scmroot/xha'...
$ git fetch origin f6650998f28b5ecc666c9e47eaefa9fc8e32d1ca:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xha
 * [new ref]         f6650998f28b5ecc666c9e47eaefa9fc8e32d1ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f665099 Merge pull request #7 from xcp-ng-rpms/gdy-XCPNG-2442