1. Write and publish a post which its only content (body) is a link
2. Edit your post
3. If you start typing your text will also be a link and will be colored as a link
Well, somewhat. It's a browser dependent behavior as to what happens if you put your link at the end of the link. Whether it should be part of the link or not is ambiguous.
It continuing after a line break is what the other bug relates to.