Items crafted in the Stonecutter don't count towards "Times Crafted" in the statistics menu

What I expected to happen was...:
I was crafting a lot of Deepslate Bricks using the Stonecutter and I was wondering how many I had made. So I wanted to check the number in the Statistics menu, which I expected to have gone up a lot.

What actually happened was...:
The number at the Statistics menu didn't go up.

Steps to Reproduce:
1. Put Cobbled Deepslate (or any stone type block) in the Stonecutter
2. Make Deepslate Bricks (or any stone type block) using the Stonecutter
3. Check Statistics menu