[fpc-devel] Interface delegation fix: backport to FPC 2.4.2 ...?

[Marco van de Voort]

In our previous episode, Michael Van Canneyt said:
> > the state of the object) and also keeps no state (the list is also in
> > Observable)
> 
> Observable and Observer go hand in hand. We're talking about both.
> Specifically, I want to add observable to TPersistent.

People having object frameworks based on that class will really thank you
for slowing their systems.