$ git clone -n https://github.com/xcp-ng-rpms/xcp-ng-deps.git /var/lib/mock/v8.3-u-pcoval2-10894-29390/root/chroot_tmpdir/scmroot/xcp-ng-deps
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10894-29390/root/chroot_tmpdir/scmroot/xcp-ng-deps'...
$ git fetch origin f3d1cfd968198bff649926ea28b2c1ef047a9ea5:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-ng-deps
 * [new ref]         f3d1cfd968198bff649926ea28b2c1ef047a9ea5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3d1cfd bump release for test build