Ticket #18859: 18859.5.patch

src/wp-includes/template.php

@@ -380 +380 @@
  * e.g. 'single_template'.
  *
  * @since 1.5.0
+ * @since 4.4.0 `single-{post_type}-{post_name}.php` was added to the top of the template hierarchy.
  *
  * @see get_query_template()
  *
@@ -390 +391 @@
 
         $templates = array();
 
-        if ( ! empty( $object->post_type ) )
+        if ( ! empty( $object->post_type ) ) {
+                $templates[] = "single-{$object->post_type}-{$object->post_name}.php";
                 $templates[] = "single-{$object->post_type}.php";
+        }
+
         $templates[] = "single.php";
 
         return get_query_template( 'single', $templates );