> The above change restores the old behavior of locking up the image, so it
> should be reverted. An additional comment explaininng why aBlock must not be
> evaluated inside the argument of #accessDictionaryOfPreferencesIn: would be
> helpful.

Ahh, because aBlock might have a non-local return in it, leaving the
Mutex unsignaled (and critical unenterable), is that right?

Took me a minute to see that problem.

Okay, I'll revert that method if no one else does by my next commit..

> It would be even better to finally get rid of DictionaryOfPreferences.
>
>
> Levente
>