$ git clone -n https://github.com/xcp-ng-rpms/gpumon /var/lib/mock/v8.3-u-psafont1-10504-29060/root/chroot_tmpdir/scmroot/gpumon
Cloning into '/var/lib/mock/v8.3-u-psafont1-10504-29060/root/chroot_tmpdir/scmroot/gpumon'...
$ git fetch origin c77d925e0ac63755fe43eded88688ea9d11dc11d:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/gpumon
 * [new ref]         c77d925e0ac63755fe43eded88688ea9d11dc11d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c77d925 bump release for test build