$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-u-psafont2-10452-29017/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-u-psafont2-10452-29017/root/chroot_tmpdir/scmroot/xapi'...
$ git fetch origin 94f0fdb699d4d804fbd311486eed45f21487e203:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xapi
 * [new ref]         94f0fdb699d4d804fbd311486eed45f21487e203 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Filtering content:  75% (3/4)
Filtering content: 100% (4/4)
Filtering content: 100% (4/4), 28.18 MiB | 20.58 MiB/s, done.
HEAD is now at 94f0fdb bump release for test build