This page notes that a featureLayer based on a featureCollection has certain restrictions, compared to a "full" featureLayer.
Does this featureLayer support onMouseOver access to the graphics, as described under GraphicsLayer onMouseOver, which states:
The returned object contains screenPoint, mapPoint, and Graphic.
I'm finding that the evt object does not contain access to the graphic, as shown in this example script, which builds up a featureLayer based on a query which creates a featureCollection.
Put a breakpoint on line 77, hover over the purple polygon and note that evt.graphic does not exist. Any easy workarounds to get access to the graphic at this point? I just need to know its OID.