In notebooks/02_regression/01_basic_regression.ipynb grouping is not respected by GroupKFold. <img width="1458" height="888" alt="Image" src="https://github.com/user-attachments/assets/909efc19-81f3-4ec5-bc03-08fde57e5c83" />
In notebooks/02_regression/01_basic_regression.ipynb grouping is not respected by GroupKFold.