Try to fix game hang caused by shelf linking.

Fixing an infinite loop caused by unchecked cache invalidation.

Sometime when you link shelves, a storageGroup in cache will not null, but with no SpawnedMember.

If unchecked, it will cause groupsOfPriorityCount to decrease by -1, which is a infinite loop.

This fix will FixCache when a group have no member.

Source/PerformanceFish/Hauling/StoreUtilityPrepatches.cs

@@ -291,6 +291,9 @@ public sealed class StoreUtilityPrepatches : ClassWithFishPrepatches
 					if (storageGroup != null)
 					{
 						otherGroupMembers = storageGroup.SpawnedMemberCount() - 1;
+						if (otherGroupMembers < 0)
+							goto FixCache;
+						
 						Debug.VerifyStorageGroup(otherGroupMembers, listInPriorityOrder, i, storageGroup);
 						
 						groupsOfPriorityCount -= otherGroupMembers;