ClusterRole is being created despite rbac.create set to false

[mac133k]

Describe the bug
Helm deployments using chart v6.15.0 and 6.16.0 fail with the following error (redacted):

Error: UPGRADE FAILED: Unable to continue with update: could not get information about the resource ClusterRole "loki-clusterrole" in namespace "": clusterroles.rbac.authorization.k8s.io "loki-clusterrole" is forbidden: User "*****" cannot get resource "clusterroles" in API group "rbac.authorization.k8s.io" at the cluster scope

In my values.yaml I put these lines:

rbac:
  create: false

Helm deployments used to succeed without errors until chart v6.12.0 - if I specify this version I am able to deploy Loki.

To Reproduce
Steps to reproduce the behavior:

1. helm upgrade loki grafana/loki -f values.yaml -n my-namespace --version 6.15.0 = FAIL
2. helm upgrade loki grafana/loki -f values.yaml -n my-namespace --version 6.16.0 = FAIL
3. helm upgrade loki grafana/loki -f values.yaml -n my-namespace --version 6.12.0 = SUCCESS

Expected behavior
I expected Helm deployment from the latest chart to succeed.

Environment:

• Infrastructure: Kubernetes
• Deployment tool: Helm
• Deployment mode: distributed