$ git clone -n https://src.fedoraproject.org/rpms/matchbox-window-manager.git /var/lib/mock/f41-build-832419-14888/root/chroot_tmpdir/scmroot/matchbox-window-manager
Cloning into '/var/lib/mock/f41-build-832419-14888/root/chroot_tmpdir/scmroot/matchbox-window-manager'...
$ git fetch origin e2e8fe349adde9c7ea7c26f971170c0079ec2381:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/matchbox-window-manager
 * [new ref]         e2e8fe349adde9c7ea7c26f971170c0079ec2381 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2e8fe3 Stop using %pathN