Does the hideAccuracy prop on googlemaps-user-position do anything?

From the source code, it looks like it is supposed to control whether an accuracy circle is drawn, but it doesn't seem to draw anything regardless of whether the value is true or false. It also seems like googlemaps-circle doesn't work at all (seems to be missing any render code). WIP? I don't need either feature, just trying to get a handle on what works.