Users with the name "Test" and "test" exist

The bug

There are two users with the same name but different capitalization:

• test: 7c6d3775-9dd7-4934-9f2c-32303a367226
• Test: d8d5a923-7b20-43d8-883b-1150148d6955

See namemc

Using the API (https://api.mojang.com/users/profiles/minecraft/<name>) you are only able to find the user with the name "Test", however the other user still exists:
https://api.mojang.com/user/profiles/7c6d37759dd749349f2c32303a367226/names