verify that the original nodes were not modified
verify that the original nodes were not modified

- yes, fails without Clone

quitejonny/tangram-es,cleeus/tangram-es,tangrams/tangram-es,quitejonny/tangram-es,cleeus/tangram-es,cleeus/tangram-es,tangrams/tangram-es,tangrams/tangram-es,quitejonny/tangram-es,cleeus/tangram-es,tangrams/tangram-es,cleeus/tangram-es,quitejonny/tangram-es,quitejonny/tangram-es,quitejonny/tangram-es,cleeus/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es