Do not send event for already selected menu radio item selection.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34009 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -12,6 +12,7 @@ All:
 All (GUI):
 
 - Fixed potential infinite loop when adjusting wxScrolledWindow scrollbars.
+- Radio in menus do not send menu event for selections of already selected item.
 
 wxMSW:
 

src/common/framecmn.cpp

@@ -205,6 +205,9 @@ bool wxFrameBase::ProcessCommand(int id)
         if (!item->IsEnabled())
             return true;
 
+        if ((item->GetKind() == wxITEM_RADIO) && item->IsChecked() )
+            return true;
+
         if (item->IsCheckable())
         {
             item->Toggle();