gistfile1.diff

Index: includes/HistoryBlob.php
===================================================================
--- includes/HistoryBlob.php    (revision 98216)
+++ includes/HistoryBlob.php    (working copy)
@@ -516,13 +516,17 @@
                $header = unpack( 'Vofp/Vcsize', substr( $diff, 0, 8 ) );
 
                # Check the checksum if mhash is available
+               # TEMPORARY WMF PATCH -- temporarily disable hash check, since a large number of 
+               # revisions appear to have hash mismatches
+               /*
                if ( extension_loaded( 'mhash' ) ) {
                        $ofp = mhash( MHASH_ADLER32, $base );
                        if ( $ofp !== substr( $diff, 0, 4 ) ) {
                                wfDebug( __METHOD__. ": incorrect base checksum\n" );
                                return false;
                        }
-               }
+               }*/
+               #### END WMF PATCH
                if ( $header['csize'] != strlen( $base ) ) {
                        wfDebug( __METHOD__. ": incorrect base length\n" );
                        return false;