The block whose "has_children" is true doesn't have children

block_id: d76e32c2-8c0f-4641-a8ee-aadac6000a5f in Fully Automatic Cross-associations.

- display
<img width="918" alt="image" src="https://github.com/C-Naoki/portfolio/assets/74347818/b8fdd0e3-6f83-4caf-bea9-1f0f0807fae1">

- Notion
<img width="797" alt="image" src="https://github.com/C-Naoki/portfolio/assets/74347818/28cf0fde-3b2b-4244-a323-5bfeae037583">