$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-u-asultanov1-9135-27957/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-u-asultanov1-9135-27957/root/chroot_tmpdir/scmroot/xapi'...
$ git fetch origin 352096bc4e44a78956856a682495c59c8185f5ca:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xapi
 * [new ref]         352096bc4e44a78956856a682495c59c8185f5ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 352096b bump release for test build