openlayers/openlayers — comment on commit 5be7e7f8442d8ccac48885bb51388b3ba441f45f
File:  line 0
By ahocevar:

This breaks SVG rendering for stylemaps with incomplete styles. We don't require users to extend ```OpenLayers.Feature.Vector.style``` for their own styles, and e.g. all our SLD components in the library also don't extend it.

The correct place to have the defaults would be [OpenLayers.Renderer.defaultSymbolizer](https://github.com/openlayers/openlayers/blob/master/lib/OpenLayers/Renderer.js#L408)