Controller crashes on startup due to conflicting configuration values

[mickume]

Deploying the jumpstarter controller with the following configuration causes the pod to crash:

https://github.com/rhadp/rhadp-platform/blob/main/roles/setup-jumpstarter/templates/jumpstarter-app.yml.j2

The issue seems to be related to this expession:

claimMappings:
  username:
    expression: '"kubernetes:" + claims["kubernetes.io"]["namespace"]'
    prefix: "jmp-k8s:"

The error message:

"error": "claimMappings.username.prefix: Invalid value: \"jmp-k8s:\": prefix can't be set when expression is set"

The log file:
jumpstarter-controller-7df6fb55cb-cc4xp-manager.log