Toby-
If by "from elsewhere", you mean «from other
articles»,
then am I the only one left that considers this a Bad Idea?
Well, as I recently learned, it was always possible to link to anchors
within other articles using the [[foo#bar]] syntax. Only the anchors were
not yet added to the articles (but could be added manually using HTML).
Now the anchors are auto-generated, because it was necessary for the table
of contents generation to do that. I'm not inclined to modify the code to
take a previously existing feature (the [[foo#bar]] support) out, which
means that it is now possible to link to sections on any page from any
page. Call it a side effect that was difficult to avoid.
Regards,
Erik