Re: ?bug in org-fold-core

[Ihor Radchenko]

Sharon Kimble <boudiccas@skimble09.plus.com> writes:

> I've just updated to 'Org mode version 9.5.4 (release_9.5.4-706-g4702a7 @ 
> /home/boudiccas/git/org-mode/lisp/)' and I'm getting this error report from 
> org-fold-core (I think) -
>
> =====
> Debugger entered--Lisp error: (error "Calling ‘org-fold-core-region’ with 
> missing SPEC")
>   signal(error ("Calling ‘org-fold-core-region’ with missing SPEC"))
>   error("Calling `org-fold-core-region' with missing SPEC")
>   org-fold-core-region(652018 652093 t outline)
>   org-cycle-content--text-properties(2)
>   org-content(2)
>   eval((org-content 2) t)
>   #f(compiled-function (var val) "Set local variable VAR with value VAL.\nIf 
> VAR is `mode', call `VAL-mode' as a function unless it's\nalready the major 
> mode." #<bytecode 0x18c3ed15a476992f>)(eval (org-content 2))
>   apply(#f(compiled-function (var val) "Set local variable VAR with value 
> VAL.\nIf VAR is `mode', call `VAL-mode' as a function unless it's\nalready 
> the major mode." #<bytecode 0x18c3ed15a476992f>) (eval (org-content 2)))
>   hack-one-local-variable(eval (org-content 2))
>   hack-local-variables-apply()
>   hack-local-variables(ignore-mode-settings)
>   org-mode()

This is not a bug. This is a changed behaviour of file-local variables.
Now, they are loaded early before most of the Org setup is done in the
buffer; before folding is configured. Hence, the error.

Note that a proper setting of startup visibility should be done via
#+startup keyword:

#+STARTUP: show2levels

Best,
Ihor