Re: Need help finding a past discussion

[Juri Linkov <juri@linkov.net>]

> A year or two ago, I remember a discussion here about something like
> a hook where we wanted to make an incompatible change which required
> somehow distinguishing those functions that expected the old behavior
> from those that expected the new one.
>
> Maybe the change was about making the hook function return another
> function, so they could be called in two steps and passed arguments at
> two separate times.
>
> I vaguely also remember that we mentioned relying on symbol properties
> (when the function was represented as a symbol) to distinguish the kind
> of function at hand.
>
> Does that ring a bell for someone?

Sounds like bug#46374 and save-some-buffers-function.