Ticket #15945: 15945.patch

wp-includes/theme.php

@@ -950 +950 @@
  */
 function get_page_template() {
         $id = get_queried_object_id();
-        $template = get_post_meta($id, '_wp_page_template', true);
+        $template = ! is_front_page() ? get_post_meta($id, '_wp_page_template', true) : '';
         $pagename = get_query_var('pagename');
 
         if ( !$pagename && $id > 0 ) {