Hi!

On 19.02.20 22:42, Bastien wrote:
> IIUC, it would be "and", not "or": first use
> 
>   (setq-local org-hide-leading-stars (default-value 'org-hide-leading-stars))
> 
> to set org-hide-leading-stars to a temporary value *and*
> 
>   (kill-local-variable 'org-hide-leading-stars)
> 
> to restore the global value.

Not quite, both are valid ways to revert hide-leading-stars to it's
original value, with the second (which I picked for the patch) having
the advantage to properly get rid off the buffer-local property again.
The mode itself calls for setting the variable locally to `t' instead of
the original value.

I attached the patch, which I hope is the correct format.  I'm still a
bit new to this, my apologies if I cause any unnecessary work.

Regards,
D.