I can create a user with a line break in the username and it doesn't warn me of this

[svidovich]

My Environment

• ArangoDB Version: 3.9.1
• Deployment Mode: Helm on K8s
• Deployment Strategy: Official Kubernetes Operator
• Configuration: Nothing interesting
• Infrastructure: K8S
• Operating System:
• Total RAM in your machine: 32Gb
• Disks in use: SSD
• Used Package: curl

Component, Query & Data

Affected feature:
User creation

Steps to reproduce

1. Create a user with a supported API or cURL or something that includes a line break at the end of the name

Problem:

Later, I went to curl my baby user but I got 404: baby does not exist. This is because I needed to curl my baby\n user instead.

curl -X PUT http://arangodb.127-0-0-1.nip.io/_api/user/baby/database/customer_baby --data '{"grant": "rw"}' --user root:4b166d06daad024cf4277048f73bfe85d13ff394ee0873e5a82deee02c85c8ac 

{"code":404,"error":true,"errorMessage":"user not found","errorNum":1703}%

Expected result:
I... don't even know. Maybe we should get yelled at if we try and make a user with line breaks / other special characters in the username? I don't know how you guys want to handle this. It's somewhat confusing.