Checking if one of comparing Frames is an Unknown frame to keep them separate

src/Whoops/Exception/Frame.php

@@ -233,6 +233,12 @@ class Frame implements Serializable
      */
     public function equals(Frame $frame)
     {
+
+        if(in_array('Unknown', array($this->getFile(), $frame->getFile())) ||
+           in_array(0,         array($this->getLine(), $frame->getLine()))
+        ) {
+            return false; //we need to keep untrackable frames separate
+        }
         return $frame->getFile() == $this->getFile() && $frame->getLine() === $this->getLine();
     }
 }