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Maniphest T331758

Special:MyLanguage/Page/fr should fallback to Page/fr rather than Page for logged-out users
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Description

Steps to replicate the issue:

What happens?:
Since your user interface is English, you are redirected to https://foundation.wikimedia.org/wiki/Policy:Terms_of_Use

What should have happened instead?:
Since English as UI language is not expected by user (T5665, T58464), you should be redirected to https://foundation.wikimedia.org/wiki/Policy:Terms_of_Use/fr
I.e. for anonymous user, we should skip the user interface language detection in the lookup chain <user lang> -> <explicit lang> -> <fallback lang(s)> -> <base> (rMWb8332e99160f)

Other information:
Workarround: https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use/fr?uselang=random_string

Details

SubjectRepoBranchLines +/-
SpecialMyLanguage: skip UI lang for anonsmediawiki/coremaster+137 -30
Customize query in gerrit

Related Objects

Event Timeline

Pols12 created this task.Mar 10 2023, 11:16 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMar 10 2023, 11:16 PM
Winston_Sung moved this task from Untriaged to Fallback on the I18n board.Aug 9 2023, 12:58 PM
Pols12 claimed this task.Jan 3 2024, 1:52 AM

Expected lookup order

If the user can choose UI language

For final display: <user lang> -> <explicit lang> -> <fallback lang(s)> -> <base>
For transclusion: <user lang> -> <explicit lang> -> <fallback lang(s)> -> <base lang> -> <base>

(The missing use case for <base lang> was reported on T309329#8031966)

Else (the user cannot chose UI language)

For final display: <explicit lang> -> <base>
For transclusion: <explicit lang> -> <base lang> -> <base>

gerritbot added a comment.Jan 3 2024, 1:56 AM

Change 987211 had a related patch set uploaded (by Pols12; author: Pols12):

[mediawiki/core@master] SpecialMyLanguage: skip UI lang for anons

https://gerrit.wikimedia.org/r/987211

gerritbot added a project: Patch-For-Review.Jan 3 2024, 1:56 AM
Tacsipacsi subscribed.Jan 4 2024, 11:45 AM
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