Ticket #41446: 41446.2.patch

wp-includes/class-wp-query.php

@@ -3206 +3206 @@
          */
         public function rewind_posts() {
                 $this->current_post = -1;
-                if ( $this->post_count > 0 ) {
+                if ( !empty( $this->posts[0] )  && isset( $this->posts[0] ) && $this->post_count > 0  ) {
                         $this->post = $this->posts[0];
                 }
         }