https://bugzilla.wikimedia.org/show_bug.cgi?id=55103
--- Comment #1 from Kunal Mehta (Legoktm) legoktm.wikipedia@gmail.com --- Questions to technical people, who know about the way of the various wikis: 1) can we always propagate #fragment interwiki links to all wikis ? - obviously, the target wiki of the link is not involved in propagation. 2) If we cannot, e.g. because some wikis would not accept them, how to deal with that: opt-in, opt-out ? 3) If a normal link exists, should it always take preceedence of over a #fragment link, similar to the type-match of disambuguation pages? 4) should there be a command line option prohibiting/allowing #framents ? If these questions are answered, I might try to implement the solution.
My suggested answers are 1) only if target wiki permits, 2) opt-out, 3) yes, 4) no.