$ git clone -n https://github.com/xcp-ng-rpms/xcp-ng-pv-tools.git /var/lib/mock/v8.3-incoming-9470-28212/root/chroot_tmpdir/scmroot/xcp-ng-pv-tools
Cloning into '/var/lib/mock/v8.3-incoming-9470-28212/root/chroot_tmpdir/scmroot/xcp-ng-pv-tools'...
$ git fetch origin c45c82f9cd5f43276bfac1655af50dc3220be719:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-ng-pv-tools
 * [new ref]         c45c82f9cd5f43276bfac1655af50dc3220be719 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c45c82f Add WinPV 9.0.9137