prevent disappearing menus in tabmdi

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@44783 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/aui/auibook.cpp

@@ -2599,7 +2599,8 @@ bool wxAuiNotebook::InsertPage(size_t page_idx,
     // select is false, it must become the "current page"
     // (though no select events will be fired)
     if (!select && m_tabs.GetPageCount() == 1)
-        m_curpage = GetPageIndex(page);
+        select = true;
+        //m_curpage = GetPageIndex(page);
 
     wxAuiTabCtrl* active_tabctrl = GetActiveTabCtrl();
     if (page_idx >= active_tabctrl->GetPageCount())

src/aui/tabmdi.cpp

@@ -177,7 +177,10 @@ void wxAuiMDIParentFrame::SetChildMenuBar(wxAuiMDIChildFrame* pChild)
     if (!pChild)
     {
         // No Child, set Our menu bar back.
-        SetMenuBar(m_pMyMenuBar);
+        if (m_pMyMenuBar)
+            SetMenuBar(m_pMyMenuBar);
+             else
+            SetMenuBar(GetMenuBar());
 
         // Make sure we know our menu bar is in use
         m_pMyMenuBar = NULL;