call tableview doubleclick action even if target is nil (action will travel down the responder chain)

AppKit/CPTableView.j

@@ -2709,7 +2709,9 @@ CPTableViewFirstColumnOnlyAutoresizingStyle = 5;
     } //end of editing conditional
 
     //double click actions
-    if([[CPApp currentEvent] clickCount] === 2 && _doubleAction && _target)
+    if([[CPApp currentEvent] clickCount] === 2 && _doubleAction)
+    {
+        _clickedRow = [self rowAtPoint:aPoint];
         [self sendAction:_doubleAction to:_target];
 }