It's possible for LUA to redirect input and not bring it back when screen is
ending (and there are existing bugs like this in Simply Love). Considering that
each screen is a separate entity, it seems like this shouldn't be possible and
each screen should handle redirection separately. Split redirection state per
each screen in the stack and clear it once screen is ending.
BitmapText internally stores characters with newlines removed, since they don't
need to be rendered. Due to this, BitmapText::AddAttributes() needs to
recalculate attribute positions and lengths in order to apply them in the
correct place. Unfortuantely the code would calculate the position incorrectly
and completely ignore length. Fix it so that everything is correct even in
multiline text.
phantom10111