Comment 5 for bug 167647

Yes, I might look at implementing that temporary preserve
solution. The other option is somehow to allow the cursor to
move within characters which aren't actually rendered, but
that's immensely difficult for internal architecture reasons
(although there is something like it for text on path, since
the spec says that characters off the end of the path
shouldn't be rendered).

As for the newlines, I wouldn't both with a preference. Lots
of very complicated things happen to add a newline, and this
isn't the worst of them. It's not worth complicating the
options dialog with.