Last modified: 2014-03-01 09:20:19 UTC
Setting $wgDebugDBTransactions = true; gives the error: Catchable fatal error: Object of class mysqli could not be converted to string in \includes\db\Database.php on line 4110 Printing the callers before the (implicit) toString gives a sprintf in SqlBagOStuff as caller: wfDebug( sprintf( "Connection %s will be used for SqlBagOStuff\n", $db ) );
Fixed by Gerrit change #116217