org-catch-invisible-edits

org-catch-invisible-edits is a variable defined in `org.el'.
Its value is

nil

Documentation:
Check if in invisible region before inserting or deleting a character.
Valid values are:

nil Do not check, so just do invisible edits.
error Throw an error and do nothing.
show Make point visible, and do the requested edit.
show-and-error Make point visible, then throw an error and abort the edit.
smart Make point visible, and do insertion/deletion if it is
adjacent to visible text and the change feels predictable.
Never delete a previously invisible character or add in the
middle or right after an invisible region. Basically, this
allows insertion and backward-delete right before ellipses.
FIXME: maybe in this case we should not even show?

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.