Ticket #51313: formatting.diff

wp-includes/formatting.php

@@ -5243 +5243 @@
         global $_links_add_target;
         $_links_add_target = $target;
         $tags              = implode( '|', (array) $tags );
-        return preg_replace_callback( "!<($tags)([^>]*)>!i", '_links_add_target', $content );
+        return preg_replace_callback( "!<($tags)(\s[^>]*)?>!i", '_links_add_target', $content );
 }
 
 /**