Fixed crash when context menu is invoked during track dragging (GAL).

common/tool/tool_interactive.cpp

@@ -66,6 +66,8 @@ void TOOL_INTERACTIVE::goInternal( TOOL_STATE_FUNC& aState, const TOOL_EVENT_LIS
 
 void TOOL_INTERACTIVE::SetContextMenu( CONTEXT_MENU* aMenu, CONTEXT_MENU_TRIGGER aTrigger )
 {
-    aMenu->SetTool( this );
+    if( aMenu )
+        aMenu->SetTool( this );
+
     m_toolMgr->ScheduleContextMenu( this, aMenu, aTrigger );
 }

pcbnew/router/router_tool.cpp

@@ -722,6 +722,9 @@ int ROUTER_TOOL::mainLoop( PNS_ROUTER_MODE aMode )
     m_savedSettings = m_router->Settings();
     m_savedSizes = m_router->Sizes();
 
+    // Disable the context menu before it is destroyed
+    SetContextMenu( NULL, CMENU_OFF );
+
     return 0;
 }
 
@@ -745,8 +748,6 @@ void ROUTER_TOOL::performDragging()
     {
         ctls->ForceCursorPosition( false );
 
-        VECTOR2I p0 = ctls->GetCursorPosition();
-
        if( evt->IsCancel() || evt->IsActivate() )
             break;
         else if( evt->IsMotion() )