I found a new glitch. It's where the "when the play button is tapped" rule is purple. o,o
That lets you know that it was an auto-when. It happens with all when's if you put it in and drag it out. I think it was intentional, but thanks for reporting.
I see this a lot. It is not a glitch. The reason is that you must have SOME when in the when space. It is just there to replace because you must have not had a when in the when space.
Oh sorry it's my first time seeing this happen so I thought it was a glitch.