- avoid className check to handle SVG elements within shadow DOM ([#966](https://github.com/snabbdom/snabbdom/issues/966)) ([95fa8ad](https://github.com/snabbdom/snabbdom/commit/95fa8ad6b6957adfbbd6d080ffc82a9381ae19fc)), closes [#965](https://github.com/snabbdom/snabbdom/issues/965)