Dashboard gadget two-dimensional statistic doesn't show filter name any more

we recently upgraded from jira 6.2 to 6.4 and I noticed that in 6.4 the gadget "Two dimensional filter statistic" no longer show the underlying filter name in the gadget title. the only way to discern multiple gadgets of that type is by either knowing it by the data shown or by mouse-over in the bottom left corner (filtered by: )