* Pass a variable whose value is null if the rev_id is not relevant or unknown.
* @param int|null &$log_id The log_id of the change to add the tags to.
* Pass a variable whose value is null if the log_id is not relevant or unknown.
* Pass a variable whose value is null if the rev_id is not relevant or unknown.
* @param int|null &$log_id The log_id of the change to add the tags to.
* Pass a variable whose value is null if the log_id is not relevant or unknown.