> - This patch covers only one of many ways to make unwanted changes
> in an invisible area. Others would be delete, backspace,
> kill-region, yank, kill-line, and an arbitrarily long list of
> less obvious other commands. Full protection could only be
> done with pre-change-hooks or so, but would then prevent
^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^
May be you were referring to `before-change-functions' here?
I see the use of the above hook already in Org. (Strangely this hook
ends with "functions" and has no has no hook in it.)
,----
| (org-add-hook 'before-change-functions 'org-before-change-function nil
| 'local)
`----
> also programmed changes - something that would not be useful.
> `org-self-insert-command' is probably only ever used in an
> interactive way, so the patch as you have written it may very
> well function correctly.
