(Half of bug 33454) The week based year number (format char 'o') was being calculated...
authorBrian Wolff <bawolff@users.mediawiki.org>
Mon, 2 Jan 2012 08:20:03 +0000 (08:20 +0000)
committerBrian Wolff <bawolff@users.mediawiki.org>
Mon, 2 Jan 2012 08:20:03 +0000 (08:20 +0000)
commit39d808f8e0db6b8b4b715b329a5ddd98009d6aa5
tree77b9e75213e96af7ad0b19c1f7c141e03f6ce300
parenta62152423826a3c0f3cde9313c9c2b7308e6a5b0
(Half of bug 33454) The week based year number (format char 'o') was being calculated based on server timezone instead of UTC in sprintfDate. [follow-up r45208]

This would cause a couple incorrect results on new years day.
RELEASE-NOTES-1.19
languages/Language.php