Is it a bug that a parent class that access its own private members from derived classes gets deprecation warning?

[bauss]

On Saturday, 7 April 2018 at 20:46:39 UTC, bauss wrote:
> The problem is that "Foo" cannot access "_baz" without 
> deperecation warning, but "_baz" is a part of "Foo".

I'm not trying to access "_baz" directly from "Bar" except for 
that I call the templated function that access "_baz", but that 
function is a part of "Foo"