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This is applicable mainly to IIS servers running PHP in ISAPI mode.

The following error message is displayed during edits.

Warning: array_key_exists(): The first argument should be either a string or an
integer in D:\inetpub\intrawiki\includes\User.php on line 132

This bug has existed in the previous release: see bug 506 for a discussion and
workaround.

Can someone go ahead and deploy the fix for us Windows wiki hosters?

*** This bug has been marked as a duplicate of 506 ***