Carriage returns in bubble title should be converted to a single space

Fixing this bug causes a regression in Banshee, Exaile, and possibly some other media players I'm not aware about. At least in the case of Banshee, the "Now Playing" notifications are formatted as such:

"${title}
<i>${artist}</i>"

And it has worked pretty nicely for quite some time already. The whole newline-to-space change has caused it to become "${title} ${artist}" (note that formatting is also removed) so that my title and artist has been squashed together into one line and look like a single string.

If you're going to be making changes like this, do change the wikipage accordingly beforehand, please, and announce it somewhere somehow. Here's a snippet of the wikipage:
============================================================================================================
Body text

The body should be 0.9 × the standard application font size, of color #eaeaea, standard weight, and should not contain any extra formatting.

In the body text, any string of one or more consecutive whitespace characters that contains at least one newline (U+000D CARRIAGE RETURN (CR), U+000A LINE FEED (LF), or U+000D CARRIAGE RETURN (CR) immediately followed by U+000A LINE FEED (LF)), even if a mixture of those, should be treated as a single newline. Then for each line in the text, any string of one or more consecutive (non-newline) whitespace characters, even if a mixture of them, should be treated as a single space, and leading and trailing whitespace should not be presented.
============================================================================================================

Chow Loong Jin, that text you quoted is about the body text, not the title text. The title text should be only one line, as described at <https://wiki.ubuntu.com/NotifyOSD#Title%20text>.

Actually, I see the problem you were talking about and I've discussed it with Mirco. Notify OSD was accidentally eating line breaks from both title and body text, instead of just title text. This is now fixed in trunk.