Error in extensions module when setting create_cluster to false

[hyder]

When not creating the cluster i.e. I want to create the networking infra only:

create_cluster = false

I get the following error when running terraform plan:
│ Error: Error in function call
│
│ on module-extensions.tf line 7, in locals:
│ 7: coalesce(split(":", lookup(local.existing_cluster_endpoints, "private_endpoint", ""))...)
│ ├────────────────
│ │ while calling coalesce(vals...)
│ │ local.existing_cluster_endpoints is empty map of dynamic

I should be able to use the module to create the nework without any existing endpoint.