https://bugzilla.wikimedia.org/show_bug.cgi?id=23305
Summary: Title::invalidateCache() doesn't work when called
within the same second as Article::doEdit()
Product: MediaWiki
Version: 1.16-svn
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Normal
Component: Page editing
AssignedTo: wikibugs-l@lists.wikimedia.org
ReportedBy: worden....@gmail.com
Created an attachment (id=7327)
--> (https://bugzilla.wikimedia.org/attachment.cgi?id=7327)
patch for ParserOutput.php
To edit several pages and have them all be parsed the next time they are
viewed, an extension can save the edits with $article->doEdit() (with some
expensive operations disabled), then expire the affected pages from the parser
cache using $title->invalidateCache() afterward. Unfortunately, this doesn't
work if doEdit() and invalidateCache() are called in the same second.
The attached patch fixes this problem by changing a < to <= in
ParserOutput.php. However, this introduces a possible bug opposite to the
existing one, in that calling invalidateCache() just BEFORE doEdit() can cause
the page to be reparsed unnecessarily. It could also cause other problems, of
course...
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