Fixes #6923, make sure metrics are formatted before generating jqplot data in graphs.

plugins/CoreVisualizations/Visualizations/Graph.php

@@ -59,7 +59,7 @@ abstract class Graph extends Visualization
         }
 
         $this->requestConfig->request_parameters_to_modify['disable_queued_filters'] = 1;
-        $this->requestConfig->request_parameters_to_modify['format_metrics'] = 0;
+        $this->requestConfig->request_parameters_to_modify['format_metrics'] = 1;
     }
 
     /**