Ticket #5590: 5590.diff

bp-core/bp-core-classes.php

@@ -1359 +1359 @@
                 }
 
                 // If this was a single user query, update the cache
-                if ( ! is_array( $user_id ) && isset( $retval[ $user_id ] ) ) {
-                        wp_cache_set( $user_id, $retval[ $user_id ], 'bp_last_activity' );
+                if ( ! is_array( $user_id ) && ! empty( $retval ) ) {
+                        wp_cache_set( $user_id, $retval, 'bp_last_activity' );
                 }
 
                 return $retval;