Do missing async generation for cache batch optimization

Fixup of #1955

Author: fredericDelaporte

src/NHibernate/Async/Event/Default/DefaultInitializeCollectionEventListener.cs

@@ -95,7 +95,7 @@ private async Task<bool> InitializeCollectionFromCacheAsync(
 			CollectionEntry[] collectionEntries = null;
 			var collectionBatch = source.PersistenceContext.BatchFetchQueue.QueryCacheQueue
 			                            ?.GetCollectionBatch(persister, collectionKey, out collectionEntries);
-			if ((collectionBatch != null || batchSize > 1) && persister.Cache.PreferMultipleGet())
+			if (collectionBatch != null || batchSize > 1 && persister.Cache.PreferMultipleGet())
 			{
 				// The first item in the array is the item that we want to load
 				if (collectionBatch != null)

src/NHibernate/Async/Event/Default/DefaultLoadEventListener.cs

@@ -416,7 +416,7 @@ protected virtual async Task<object> LoadFromSecondLevelCacheAsync(LoadEvent @ev
 			var batchSize = persister.GetBatchSize();
 			var entityBatch = source.PersistenceContext.BatchFetchQueue.QueryCacheQueue
 			                        ?.GetEntityBatch(persister, @event.EntityId);
-			if ((entityBatch != null || batchSize > 1) && persister.Cache.PreferMultipleGet())
+			if (entityBatch != null || batchSize > 1 && persister.Cache.PreferMultipleGet())
 			{
 				// The first item in the array is the item that we want to load
 				if (entityBatch != null)