Nested query type detection of Task/Event

[pwrightcertinia]

Reported error and code sample (ActionPlansV4 sample repo):

main/default/classes/ActionPlansTriggerHandlers.cls
Missing: line 330 at 42-73: Unknown field 'IsClosed' on SObject 'Schema.Event'

Map<Id, APTask__c> parentControllingTasks = new Map<Id, APTask__c>([SELECT Id, (SELECT Id, IsClosed FROM Tasks__r) FROM APTask__c WHERE Id IN :parentControllingTaskIDs]);
Set<Id> apTasksNeedingTaskDeletion = new Set<Id>();
for(Id i : openControlledAPTasks.keyset()){
	APTask__c controller = parentControllingTasks.get(openControlledAPTasks.get(i));
	if(controller.Tasks__r.isEmpty() || !controller.Tasks__r[0].IsClosed){
		apTasksNeedingTaskDeletion.add(i);
	}
}

"Tasks__r" comes from the nested query which we probably ignore. The resolved type of the first element is then Event according to the error.

[kjonescertinia]

This is resolved by #214.