I believe the title language support is for the LanguageConverter extension. They used to (ab)use the `{{DISPLAYTITLE:title}}` magic word in order to use the proper language variant, something like:
`{{DISPLAYTITLE:-{en-us:Color; en-gb:Colour}-}}`
Then support was added to avoid the need for this hack, and just Do The Right Thing. I don't know the details, but presumably `Title::getDisplayLanguage` is part of it.
On Tue, Nov 10, 2015 at 4:00 PM, Brian Wolff bawolff@gmail.com wrote:
contents on pretty much every other wiki (As an aside, TOC really shouldn't split parser cache imo, and that's something I'd like to fix at some point, but as it stands, any page with a ToC is split by user language)
Then you'll be interested in taking a look at https://phabricator.wikimedia.org/T114057 --scott