An event being attached in data, but not graphically

[eirikblekesaune]

In the attached scenario there is one state that seems to be attached to another event, below graphically.
When I drag the position of the state in question, the other event below also moves graphically, but I can't really understand what the relationship between the state and the event is.

Here is an image of the state (or event?) that shows this behaviour. It is the topmost state, with the condition:

It happened when dragging this state from the event below. Me and @bltzr was doing it, we are not sure how we did it.

Here is the score in question:
BuggyStateDragger.scorejson.zip

[bltzr]

FIY this event got detached after we tried to move it to the top (over the state on which the trigger is placed) - don't know if that helps