Since CUIWnd is derived from GG::Wnd, which has a virtual destructor, CUIWnd's destructor is also automatically virtual, even if not explicitly declared virtual, so this change was unnecessary (but harmless).
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Need to commit patch.
Fixed in Subversion.
Since CUIWnd is derived from GG::Wnd, which has a virtual destructor, CUIWnd's destructor is also automatically virtual, even if not explicitly declared virtual, so this change was unnecessary (but harmless).