$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-fasttrack-9326-28078/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-fasttrack-9326-28078/root/chroot_tmpdir/scmroot/xapi'...
$ git fetch origin f029faaa5d5417ca63edc765dd017cbb3662bd2b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xapi
 * [new ref]         f029faaa5d5417ca63edc765dd017cbb3662bd2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f029faa Merge pull request #110 from xcp-ng-rpms/asv/utf8-fix