We are losing line breaks when rendering the issue description, works in preview (BB-1230)

Hi! I've just created a bug and noticed that what I see is not what I get)

Screenshot of what I see: http://dl.dropbox.com/u/865508/%D0%92%D1%8B%D0%B4%D0%B5%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5_064.png

And what I get: http://dl.dropbox.com/u/865508/%D0%92%D1%8B%D0%B4%D0%B5%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5_065.png