properly use the current pointer defined on line 135

Author: StephenHodgson

Assets/MixedRealityToolkit-SDK/Features/Input/Handlers/DragAndDropHandler.cs

@@ -135,7 +135,7 @@ void IMixedRealityPointerHandler.OnPointerDown(MixedRealityPointerEventData even
             currentPointer = eventData.Pointer;
 
             FocusDetails focusDetails;
-            Vector3 initialDraggingPosition = MixedRealityManager.InputSystem.FocusProvider.TryGetFocusDetails(eventData.Pointer, out focusDetails)
+            Vector3 initialDraggingPosition = MixedRealityManager.InputSystem.FocusProvider.TryGetFocusDetails(currentPointer, out focusDetails)
                     ? focusDetails.Point
                     : hostTransform.position;