[kbs666]

I'll try and break this down as simply as I can from the point of view of a guy who has designed web pages. Non breaking spaces are an actual space except they prevent what the separate from going on different lines. A zero width space is the opposite, it isn't a visible space at all but will allow the things it separates to be on different lines.

There are several other spaces mostly having to do with their physical width that you rarely see, or see automatically applied by word processors.

It is unclear to me if the issue is with RW or not. This whole inserting zwsp or nbsp when using the shortcuts to create new snippets may be unavoidable or it may be a bug.