Ihor Radchenko <yantar92@gmail.com> writes:

> There should be no other buffer setting that is taken into account
> in COMMENTed subtrees. EXPORT_FILE_NAME is the only one.
>
> I think that we should not really change the manual unless we have to.
> It will be better to fix the bug instead.

I am attaching a tentative change to ox.el machinery that will allow
calculating EXPORT_FILE_NAME dynamically inside the processed export
buffer.

The change is not yet fixing the bug. I just want to hear feedback
on the approach I used.

Let me know if you see any issues or have better ideas.