Ticket #4759: 4759.01.patch

src/bp-forums/bp-forums-loader.php

@@ -268 +268 @@
 
                 parent::setup_title();
         }
+
+        /**
+         * Disable cache groups due to a caching discrepancy in BackPress.
+         *
+         * @since 2.7.0
+         * @see   https://buddypress.trac.wordpress.org/ticket/4759
+         */
+        public function setup_cache_groups() {
+                wp_cache_add_non_persistent_groups( array(
+                        // Posts.
+                        'bb_forums',
+                        'bb_query',
+                        'bb_cache_posts_post_ids',
+
+                        // Topics
+                        'bb_post'
+                ) );
+        }
 }
 
 /**