9a8c34f780
https://habitica.com/apidoc/#api-Task-CreateChallengeTasks Aliases can't be added by the challenge creator as shown by this test: https://github.com/HabitRPG/habitica/blob/2dad540d43b1bbe5587c95ab5876c23ef0ab7e19/test/api/v3/integration/tasks/challenges/POST-tasks_challenge_id.test.js#L77-L87 That's a requirement because in each user's account, each alias must be unique, and you can't enforce that if the challenge creator can assign an alias.