Not able to use existing secret to access S3

[d47zm3]

Hello

I have problem with re-using existing secret on Kubernetes to access S3, it won't fetch AWS Access and Secret Keys from existing secret and renders them empty.
Chart Version: 9.7.0
Relevant Values:

s3:
  enabled: true
  auth:
    secretKeys:
      accessKeyId: aws-access-key
      secretAccessKey: aws-secret-access-key
    existingSecret: openproject-secrets
  region: eu-west-1
  bucketName: company-openproject
  pathStyle: true
  signatureVersion: 4
  useIamProfile: false
  enableSignatureV4Streaming: true
  directUploads: true

Secret itself (openproject-secrets)

apiVersion: v1
data:
  aws-access-key: ABC=
  aws-secret-access-key: XYZ=
  db-password: PASSWORD

now it will render openprojects-s3 secret with content

apiVersion: v1
data:
  OPENPROJECT_ATTACHMENTS__STORAGE: Zm9n
  OPENPROJECT_DIRECT__UPLOADS: dHJ1ZQ==
  OPENPROJECT_FOG_CREDENTIALS_AWS__ACCESS__KEY__ID: ""
  OPENPROJECT_FOG_CREDENTIALS_AWS__SECRET__ACCESS__KEY: ""
  OPENPROJECT_FOG_CREDENTIALS_AWS__SIGNATURE__VERSION: NA==
  OPENPROJECT_FOG_CREDENTIALS_ENABLE__SIGNATURE__V4__STREAMING: dHJ1ZQ==
  OPENPROJECT_FOG_CREDENTIALS_PATH__STYLE: dHJ1ZQ==
  OPENPROJECT_FOG_CREDENTIALS_PROVIDER: QVdT
  OPENPROJECT_FOG_CREDENTIALS_REGION: ZXUtd2VzdC0x
  OPENPROJECT_FOG_CREDENTIALS_USE__IAM__PROFILE: ZmFsc2U=
  OPENPROJECT_FOG_DIRECTORY: <BUCKET>

Any idea what is going on? Anyone had success with using existing secret? I swear looking at template it should work.

Also, any plans to introduce support for IRSA/Pod Identity on EKS?