It is outputting anchor links in place of IDs

<h2 id="#Basic_information">

Which is wrong, it should make the ID for the ID, not the link to the ID.

So we have this:

https://en.wikipedia.org/w/index.php?title=Apple_Inc.&action=info#%23Basic_information

instead of:
https://en.wikipedia.org/w/index.php?title=Apple_Inc.&action=info#Basic_information

Caused by Change-Id: I702f2f13d3b7af26d89c4fd9002d3161dc7905d2

Version: 1.21.x
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=42629