Ticket #16073: 16073.patch

wp-includes/theme.php

@@ -1754 +1754 @@
                 $_wp_theme_features[$feature] = true;
         else
                 $_wp_theme_features[$feature] = array_slice( func_get_args(), 1 );
+
+        if ( 'post-formats' == $feature && is_array( $_wp_theme_features[$feature][0] ) ) {
+                foreach ( array_keys( array_diff( $_wp_theme_features[$feature][0], get_post_format_slugs() ) ) as $key ) 
+                        unset( $_wp_theme_features[$feature][0][$key] );
+        }
 }
 
 /**