set m_isBeingDeleted to true (only) in SendDestroyEvent(); call it as early as possible during the window destruction to ensure that destroy event handlers can still access the full window object

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58246 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/x11/window.cpp

@@ -350,8 +350,6 @@ wxWindowX11::~wxWindowX11()
     if (g_captureWindow == this)
         g_captureWindow = NULL;
 
-    m_isBeingDeleted = true;
-
     DestroyChildren();
 
     if (m_clientWindow != m_mainWindow)