Editor - double color bbcode

#2080

I have reported this issue to Imperavi, while I do have a vague idea how to work-around it, I prefer waiting for them to take care of it. This has two reasons:

• This issue is technically directly related to a few other issues concerning inline formatting, while they have a different outcome they all origin from the same source
• While it may be wasteful to let such HTML pass through, it doesn't break anything, in fact all it does is adding some useless extra markup

In the fast weeks I have traced down a few issues related to each other and while I'm able to resolve every single one of them, I can barely foresee the outcome of my changes. Imperavi is on holidays until January 5th, I will wait until then to see if they already have something in the working. In case there are no positive signals from them I will take care of these (including this one) on my own.

tl;dr: This is related to a bug inside the editor responsible for a bunch of other issues. I'm waiting for Imperavi to resolve this, yet - no matter what happens - this issue will be resolved before the final version is released