/** @var MWTimestamp|bool Timestamp upto which history from the source will be merged */
protected $timestampLimit;
/** @var MWTimestamp|bool Timestamp upto which history from the source will be merged */
protected $timestampLimit;
* @param Title $source Page from which history will be merged
* @param Title $dest Page to which history will be merged
* @param string|bool $timestamp Timestamp up to which history from the source will be merged
* @param Title $source Page from which history will be merged
* @param Title $dest Page to which history will be merged
* @param string|bool $timestamp Timestamp up to which history from the source will be merged