Yes, it is called grouted, sorry! Apparently, you can't see anything anymore when the [Fuger] has finished the clinker... but why don't you just cover it right away?! In the next life, I will become a craftsman!
The procedure of the craftsman is incomprehensible to me. It looks more like a mistake than a necessary construction. Even if you do not see it later... how is the head wood then protected?