https://bugzilla.wikimedia.org/show_bug.cgi?id=68344
Bug ID: 68344
Summary: IcuCollation's 'first-letters' cache key should
include the version of ICU and possibly PHP that was
used to build the data
Product: MediaWiki
Version: 1.24-git
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: Unprioritized
Component: Categories
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Web browser: ---
Mobile Platform: ---
IcuCollation's 'first-letters' cache key should include the version of ICU and
possibly PHP that was used to build the data. Otherwise upgrading anything
requires you to manually clear the caches.
I encountered this on Labs when preparing a test wiki for bug 54168 – it was
set up under HHVM, then I switched to PHP 5.5 because page import doesn't work
with HHVM (bug 66023), and then category listings got weird
(http://i.imgur.com/Po94jiq.png for
http://estonia.wmflabs.org/wiki/Kategooria:Test).
(The data is incompatible between different ICU versions, that's why we
generate it dynamically in IcuCollation::getFirstLetterData() and cache instead
of storing it in a static file somewhere.)
This is probably a blocker to the Trusty migration? Should be simple to fix.
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