Ticket #20897: 20897.patch

wp-includes/deprecated.php

@@ -3114 +3114 @@
                 'AuthorName' => $theme->display('Author', false, false),
         );
 
+        if ( $extra_headers = apply_filters( 'extra_theme_headers', array() ) ) {
+                $extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values
+                foreach ( $extra_headers as $key )
+                        $extra_headers[ $key ] = $theme->get( $key );
+                $theme_data = array_merge( $extra_headers, $theme_data );
+        }
+
         return $theme_data;
 }