$ git clone -n https://github.com/xcp-ng-rpms/xcp-python-libs.git /var/lib/mock/v8.3-incoming-9328-28084/root/chroot_tmpdir/scmroot/xcp-python-libs
Cloning into '/var/lib/mock/v8.3-incoming-9328-28084/root/chroot_tmpdir/scmroot/xcp-python-libs'...
$ git fetch origin 1d80fa4d8fef1585fbc4503d4b6bb7b74cf0aa50:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xcp-python-libs
 * [new ref]         1d80fa4d8fef1585fbc4503d4b6bb7b74cf0aa50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d80fa4 Merge remote-tracking branch 'origin/XS-8.3' into 8.3-rebase-XS-1715