I’m confused. If onebox is ok, then how did broken example happen? Can you post a screenshot of what that looks like in the editor?
Whenever I’m pasting links I usually just type a description, highlight it, use ctr+k and then paste the address. If you take the update from few days ago (2.8.0.beta9) then you can get the even easier version of this. You just write the text you want to be hyperlinked, highlight it and paste the url.