Last modified: 2013-09-23 15:24:20 UTC
I was looking for the change https://pt.wikipedia.org/wiki/Special:AbuseFilter/history/1/diff/prev/1420?uselang=en on https://pt.wikipedia.org/wiki/Special:Log?page=Special%3AAbuseFilter%2F1&uselang=en but it is missing on that list. For some reason, it only appears if I change the name of the target page from "Special:AbuseFilter/1" to "Especial:Filtro de abusos/1": https://pt.wikipedia.org/wiki/Special:Log?page=Especial%3AFiltro+de+abusos%2F1&uselang=en The logs from the two links above should be merged and displayed in both cases.
According to https://pt.wikipedia.org/w/api.php?action=query&list=logevents&format=jsonfm&leprop=ids%7Ctitle%7Ctimestamp&leaction=abusefilter%2Fmodify&lelimit=500 the last time a title of the form "Especial:AbuseFilter/" appeared in the log was on this change from 2012-02-29T20:08:44Z: https://pt.wikipedia.org/wiki/Especial:Registo?dir=prev&offset=20120229200843&limit=1&uselang=en Maybe this helps to find what changed in the code around that time?
The abusefilter logging was disabled in r48501 and then re-enabled on r52734. These were the most recent changes to the line of /AbuseFilter/Views/AbuseFilterViewEdit.php which contains $lp->addEntry( 'modify', $this->getTitle( $new_id ), '', array( $history_id, $new_id ) );
The AbuseFilter extension is using the localizied special page name as log title. Maybe the AbuseFilter special page was later localized than it was enabled. That means, the first usage was under english special page, the new one under the current name.
But both names refer to the same page, so I think they should also be considered synonyms when getting the list of logs.