Undo and Redo are broken with javascript blocks

[Bouh]

Undo and redo Problem

Surely because there is no timeout when you press the button/shortcut. By the way, it really makes the software slow if you stay on the keys. A little timeout on the function can be interresting. Same thing happend when we press arrow button for move pixels by pixels an instance on the scene, if you stay on the button all is very slow.

And maybe some actions are not correctly saved in the history, this is very improbable but why not.

The best thing todo for help the devs is to record in video with your keyboard input what are you doing when this unro/redo problem appear.