Query: Should weak entites be tracked?

[smitpatel]

#13036 made them non-trackable without "owner". We need to re-discuss when @AndriySvyryd is back.

[salaros]

This PR breaks completely scenarios when an entity inherits an owned entity from its base class:

[Owned]
public class OwnedEntity
{
	public string Prop { get; set; }
}

public class A 
{
	public string Foo { get; set; }
}

public class B : A
{
	public string Bar { get; set; }
}

// ...

builder
	.OwnsOne(a => a.AuditLog); //<-- works only for base type

// ...

await dbContext.Set<B>().SingleOrDefaultAsync(e => e.Bar == bar); //<-- throws InvalidOperationException

[smitpatel]

@salaros - Thanks for reporting. Filed #18024 to track the bug.