Bug: Text bug in quotes and other places

I’ve been seeing this a lot lately:

I think it’s only on Linux + Chrome, so please tell me if you’ve noticed it in other configurations.

Does anyone have any idea what might cause this?

I’m not seeing this at all with Firefox.
I’m using Windows and Linux.

I even made sure I’m definitely looking at the same posting by visiting http://hub.jmonkeyengine.org/forum/topic/entity-system-topic-united/page/6/#post-243541 and Ctrl-reloading the page.