GC detects leaks for items that are added to the List field of the base class, when the class scope allocated.

[Zeon8]

I have a base class that defines append list and derived class that have a method that allocates new items and adds it to the list. However, after allocating the class on stack and calling that method, after a few seconds GC detects memory leaks, even though the list field has a destructor that deletes all items.

Code example

class Program
{
	static int Main(String[] args)
	{
		var test = scope Test2();
		test.AddItems();
		while(true)
		{
			Thread.Sleep(500);
		}
	}
}

class Test1
{
	public append List<TestItem> Items ~ ClearAndDeleteItems!(_);
}

class Test2 : Test1
{
	public void AddItems()
	{
		Items.Add(new TestItem());
		Items.Add(new TestItem());
	}
}

class TestItem {}

Output:

Example project