$ git clone -n https://github.com/xcp-ng-rpms/gpumon.git /var/lib/mock/v8.3-u-psafont2-9765-28474/root/chroot_tmpdir/scmroot/gpumon
Cloning into '/var/lib/mock/v8.3-u-psafont2-9765-28474/root/chroot_tmpdir/scmroot/gpumon'...
$ git fetch origin 60d239f81d8831970d4be37fcf01cad690b1a8bd:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/gpumon
 * [new ref]         60d239f81d8831970d4be37fcf01cad690b1a8bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60d239f bump release for test build