opensearch_security.multitenancy.tenants.preferred does not take effect

[artemus717]

Describe the bug

opensearch_security.multitenancy.tenants.preferred is set, but OpenSearch Dashboard does not show tenant in "switch tenant" tab as set in opensearch_dashboard.yaml.

To Reproduce
opensearch_security.multitenancy.enabled: true
opensearch_security.multitenancy.tenants.enable_global: false
opensearch_security.multitenancy.tenants.enable_private: true
opensearch_security.multitenancy.tenants.preferred: ["Flash", "OnlineOps", "Atlas", "Private"]
opensearch_security.multitenancy.enable_filter: true
opensearch_security.readonly_mode.roles: [kibana_read_only]

OpenSearch Version
2.13.0

Dashboards Version
2.13.0

Host/Environment (please complete the following information):
Official docker image

[scrawfor99]

[Triage] Hi @artemus717, thank you for filing this issue. @cwperks please take a look and address as appropriate.