bug#41130: bug#41198: 27.0.60; [PATCH] heading cycling command for outline

[Juri Linkov]

>> Now finally org keys are available in etc/NEWS, nice!
>> But typing S-TAB at the beginning of etc/NEWS signals the error:
>>
>>  Debugger entered--Lisp error: (error "Before first heading")
>>    signal(error ("Before first heading"))
>>
>> This is not how org-mode works - S-TAB doesn't fail before first heading
>> in org-mode.
>
> Do you suggest to change it to a user-error? Or just be silent?

To imitate org-mode, maybe outline-mode could temporarily (i.e. by
using save-excursion) navigate to the first heading before running
the rest of outline-cycle-buffer when it's before first heading?

Thank you for this nice feature!