Fixed an infinite loop in the destructor of ACTION_MANAGER;

common/tool/action_manager.cpp

@@ -67,13 +67,13 @@ void ACTION_MANAGER::RegisterAction( TOOL_ACTION* aAction )
 
 void ACTION_MANAGER::UnregisterAction( TOOL_ACTION* aAction )
 {
+    m_actionNameIndex.erase( aAction->m_name );
+    m_actionIdIndex.erase( aAction->m_id );
+
     // Indicate that the ACTION_MANAGER no longer care about the object
     aAction->setActionMgr( NULL );
     aAction->setId( -1 );
 
-    m_actionNameIndex.erase( aAction->m_name );
-    m_actionIdIndex.erase( aAction->m_id );
-
     if( aAction->HasHotKey() )
         m_actionHotKeys.erase( aAction->m_currentHotKey );
 }