Fix r41377 - Incompatible old keys caused Fatal Error

diff --git a/includes/Interwiki.php b/includes/Interwiki.php
index 4fa6b52..3d0f216 100644 (file)
--- a/includes/Interwiki.php
+++ b/includes/Interwiki.php
@@ -123,7 +123,7 @@ class Interwiki {
                global $wgMemc;\r
                $key = wfMemcKey( 'interwiki', $prefix );\r
                $mc = $wgMemc->get( $key );\r
-               if( $mc ){\r
+               if( $mc && is_array( $mc ) ){ // is_array is hack for old keys\r
                        if( $this->loadFromArray( $mc ) ){\r
                                wfDebug("Succeeded\n");\r
                                return true;\r