When an image redirects to another, entries are put in the redirect table *and* the imagelinks table. This unfortunately gives double information on the ImagePage, where pages are listed as linking to an image and redirecting to it. It shouldn't be both.
Version: unspecified
Severity: enhancement
Change 105829 had a related patch set uploaded by Anomie:
Move redirect rendering into WikitextContent
Note that, starting in 1.23wmf10, ImagePage will start displaying redirects like Special:WhatLinksHere does: the linking pages will be displayed at the "main" level and in a sublist of the redirect. This will, of course, depend on those pages linking to the redirect having a LinksUpdate job run (e.g. they need to be edited, or purged with forcelinkupdate, or the file redirect could be purged with forcerecursivelinkupdate).
See https://www.mediawiki.org/wiki/MediaWiki_1.23/Roadmap for the schedule.