public function rewind()
{
$this->recurIterator->rewind();
// re-creating overridden event index.
$index = array();
foreach ($this->overriddenEvents as $key => $event) {
$stamp = $event->DTSTART->getDateTime($this->timeZone)->getTimeStamp();
$index[$stamp] = $key;
}
krsort($index);
$this->counter = 0;
$this->overriddenEventsIndex = $index;
$this->currentOverriddenEvent = null;
$this->nextDate = null;
$this->currentDate = clone $this->startDate;
$this->next();
}