From Mo Dejong <supermo@bayarea.net>:

    From Mo Dejong  <supermo@bayarea.net>:
        * win/tkWinWm.c (Tk_WmCmd): Check the WM_NEVER_MAPPED
        flag while processing the wm deiconify command.
        The WM_UPDATE_PENDING flag should never be set when
        WM_NEVER_MAPPED is set, but double check so that
        the implementation is more explicit and matches
        the comment just above.
        Return without invoking TkWmRestackToplevel or
        TkSetFocusWin on a toplevel that has never been
        mapped. This fixes a bug where a toplevel is mapped
        with the wrong size and is then resized by the
        idle call to MapFrame.