Unlicense is not recognized as a license

Summary

Unlicensed project have a different license file name: instead "LICENSE" they often use "UNLICENSE".

Steps to reproduce

Create a repo with UNLICENSE file with the license text from https://unlicense.org/ .

Example Project

https://gitlab.com/KOLANICH1/pyxgboost

GL doesn't recognize the project license.

What is the expected correct behavior?

It should. And GitHub does it.