[PATCH 2/2] user32/listbox: Update the size in SetColumnWidth unconditionally

[Gabriel Ivăncescu]

Actually, I thought of something else: why not just add a check in
LISTBOX_UpdateSize itself to see if width and height have changed at
all? And if they haven't, just return early?

This should alleviate any issues since in this case, calling
UpdateSize from SetColumnWidth when the size itself hasn't changed
shouldn't do a thing (it will return early from it and not invalidate
anything).

If that's ok, I will prepare a patch for that. (obviously, it will be
a separate patch, this one is still valid in this case)