$ git clone -n https://github.com/xcp-ng-rpms/xcp-ng-release /var/lib/mock/v9.0-incoming-11155-29571/root/chroot_tmpdir/scmroot/xcp-ng-release
Cloning into '/var/lib/mock/v9.0-incoming-11155-29571/root/chroot_tmpdir/scmroot/xcp-ng-release'...
$ git fetch origin d14ade3e2e9d56071eedde3959e81737264f90d4:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-ng-release
 * [new ref]         d14ade3e2e9d56071eedde3959e81737264f90d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d14ade3 bump release for test build