Fix fix r38823

diff --git a/includes/Article.php b/includes/Article.php
index 2b933bc..21ec092 100644 (file)
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -2767,10 +2767,12 @@ class Article {
                        && !($minoredit && $wgUser->isAllowed('nominornewtalk') ) ) {
                        if (wfRunHooks('ArticleEditUpdateNewTalk', array(&$this)) ) {
                                $other = User::newFromName( $shortTitle );
-                               if( User::isIP( $shortTitle ) ) {
+                               if ( !$other ) {
+                                       wfDebug( __METHOD__.": invalid username\n" );
+                               } elseif( User::isIP( $shortTitle ) ) {
                                        // An anonymous user
                                        $other->setNewtalk( true );
-                               } elseif( $other instanceof User && $other->isLoggedIn() ) {
+                               } elseif( $other->isLoggedIn() ) {
                                        $other->setNewtalk( true );
                                } else {
                                        wfDebug( __METHOD__. ": don't need to notify a nonexistent user\n" );