I wish to allow a keystoke, and no others till an amount of time has passed.
The attached node does that the first time (write "GO!" just when the key is let pass); filtering followings.
After 3 sec are passed, it allows correctly a second keystroke.
Typing quickly a third, it wrongly allows it, even if the time is not passed yet.
There should be a reset event that I can't control, what am I doing wrong?