Ticket #34977: 34977.patch

src/wp-includes/comment.php

@@ -1876 +1876 @@
         do_action( 'wp_set_comment_status', $comment->comment_ID, $comment_status );
 
         wp_transition_comment_status($comment_status, $comment_old->comment_approved, $comment);
-
-        wp_update_comment_count($comment->comment_post_ID);
-
+        
+        if ( $comment->comment_post_ID ) {
+                wp_update_comment_count($comment->comment_post_ID);
+        }
         return true;
 }
 
@@ -1947 +1948 @@
         $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );
 
         clean_comment_cache( $comment_ID );
-        wp_update_comment_count( $comment_post_ID );
+        if ( $comment_post_ID ){
+                wp_update_comment_count( $comment_post_ID );
+        }
         /**
          * Fires immediately after a comment is updated in the database.
          *