[PD] Apply missing

[Ivica Ico Bukvic]

> >> states.  The first part o that is not hard, the second part is.  But
since
> >> unlimited undo is working in some parts of pd-l2ork, we at least have a
> >> working example to draw from.
> >
> > What do you mean by "in some parts?" Can you give an example of where
> it
> > does not work?
> 
> Setting a value in the properties of a slider.

You are kidding, right? If the value changes in the UI, this should not be
undoable. Otherwise, having that slider connected to a [metro 1]  and random
would starve memory within minutes, needless to mention make undo completely
useless...