I am on https://maproulette.org/challenge/50891/task/273210231 and use the layer control to activate the Mapillary images.

I except the images to be added to the selection.

• When I select just the checkbox, that is what happens. > I see both the task details and mapillary points
• When I select the label, the task details get unselected > I only see the mapillary points

Here is a video:

The UI is that of a checkbox, so it should be additive (not like radiobuttons).
I consider the behavior of the checkbox to be the right one.

In any case, there should only be one behavior … everything else is too confusing.