fixup! fix(caldav): add EXDATE and EXRULE to confidential object

Author: miaulalala

apps/dav/lib/CalDAV/CalendarObject.php

@@ -116,6 +116,8 @@ private function createConfidentialObject(Component\VCalendar $vObject) {
 					case 'CREATED':
 					case 'DTSTART':
 					case 'RRULE':
+					case 'RECURRENCE-ID':
+					case 'RDATE':
 					case 'DURATION':
 					case 'DTEND':
 					case 'CLASS':