$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-u-asultanov2-9677-28400/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-u-asultanov2-9677-28400/root/chroot_tmpdir/scmroot/xapi'...
$ git fetch origin 22671aee5d2adec2f4beda5ae276af7f43186c6f:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xapi
 * [new ref]         22671aee5d2adec2f4beda5ae276af7f43186c6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22671ae bump release for test build