fix editeventdialog for monthly repeating events with a specific weekday and weeknumber combination

apps/calendar/ajax/editeventform.php

@@ -78,11 +78,11 @@ if($data['repeating'] == 1){
 			foreach($byday_days as $byday_day){
 				if(strlen($byday_day) == 2){
 					$repeat['weekdays'][] = $byday_day;
-				}elseif(strlen($rrulearr['BYDAY']) == 3){
+				}elseif(strlen($byday_day) == 3){
 					$repeat['weekofmonth'] = substr($byday_day , 0, 1);
 					$repeat['weekdays'][] = substr($byday_day , 1, 2);
-				}elseif(strlen($rrulearr['BYDAY']) == 4){
-					$repeat['byweekno'] = substr($byday_day , 0, 2);
+				}elseif(strlen($byday_day) == 4){
+					$repeat['weekofmonth'] = substr($byday_day , 0, 2);
 					$repeat['weekdays'][] = substr($byday_day , 2, 2);
 				}
 			}