Since textedit is doing the justify layout calculation itself, we need
to report the original desired_size as intrinsic size, instead of the
value passed to allocate_space.
I wonder though, is it still necessary that the TextEdit does the
justify calculation itself instead of relying on the ui layout to do it?
As far as I understand it, justify should be handled by the
ui.allocate_space call.
4e101d25cd