If you press the unpressed button that is facing west in the Debug world type, as well as dropping buttons, drops a butt-load of repeaters and massively lags my game. In the picture, all of those repeaters came after 1 or 2 clicks.
MC-71149
Button in Debug
Resolved
Duplicate
0
This issue is a duplicate of MC-58898. It has been linked to the original bugreport.
Please search before reporting any bugs, as it's likely that one exists already.