Event recurrences appear twice if moved#341

### PHP Version 8.3 ### PHP date.timezone Europe/Paris ### ICS Parser Version 3.4 ### Operating System Mac ### Description I moved the recurrence of an event and now this recurrence appears twice in the events that are loaded. It first appears on the correct date (the last, after moving), but it still appears on its initial date. My event is as follows ``` BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240910T140000 DTEND;TZID=Europe/Paris:20240910T173000 DTSTAMP:20240912T131820Z UID:FAKE-UID RECURRENCE-ID;TZID=Europe/Paris:20240911T090000 CREATED:20240311T155453Z LAST-MODIFIED:20240911T162406Z SEQUENCE:3 STATUS:CONFIRMED SUMMARY: FAKE-NAME TRANSP:OPAQUE CATEGORIES:2 END:VEVENT ``` Lines 1307 and 1308 of the `ICal.php` file seem suspicious to me, as they imply that we're going to replace the DTSTART date of the recurrence with the date contained in the RECURRENCE-ID field. ```php protected function processEvents() { ... $recurrenceDateUtc = $this->iCalDateToUnixTimestamp($anEvent['RECURRENCE-ID_array'][3]); $this->alteredRecurrenceInstances[$uid][$key] = $recurrenceDateUtc; ... } ``` However, this initial date is now just an ID, since the recurrence has been moved. Even if these lines are modified, the problem remains. No matter how hard I try, I have to admit that I'm powerless to fix this bug. ### Steps to Reproduce You can use the following event ``` BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240910T140000 DTEND;TZID=Europe/Paris:20240910T173000 DTSTAMP:20240912T131820Z UID:FAKE-UID RECURRENCE-ID;TZID=Europe/Paris:20240911T090000 CREATED:20240311T155453Z LAST-MODIFIED:20240911T162406Z SEQUENCE:3 STATUS:CONFIRMED SUMMARY: FAKE-NAME TRANSP:OPAQUE CATEGORIES:2 END:VEVENT ```