I thought the same but restart doesn't reset the layers on restart of the layout. I look at the manual stated it only resets the events if you want to do global variables you have an option of resetting them yourself. Ashley even stated that restart layout does not reset everything that being layers...and stated that there was a trivial work around but when you have multiple layers to reset what may seem trivial can become tedious...you would think jump to one layout and back would do it but it doesn't.
So why not have an option to just say reset layers.