Unique length eq 0 causing naming issues

[DenisBalan]

having

module "naming" {
  source  = "Azure/naming/azurerm"
  suffix = [ local.env_vars.build_stage, "xxx" ]
}

locals {
    
}
output "environment_variables" {
  value     = module.naming.key_vault
}

it generated following output

environment_variables = {
  "dashes" = true
  "max_length" = 24
  "min_length" = 3
  "name" = "kv-dev-xxx"
  "name_unique" = "kv-dev-xxx-dor7"
  "regex" = "^[a-zA-Z][a-zA-Z0-9-]+[a-zA-Z0-9]$"
  "scope" = "global"
  "slug" = "kv"
}

after that, adding unique-length = 0

module "naming" {
  source  = "Azure/naming/azurerm"
  suffix = [ local.env_vars.build_stage, "xxx" ]
  unique-length = 0
}

locals {
    
}
output "environment_variables" {
  value     = module.naming.key_vault
}

it will generate invalid name with - dash at the end for the name_unique property, which obviously is not a valid name for any of the service.

  ~ environment_variables = {
        name        = "kv-dev-xxx"
      ~ name_unique = "kv-dev-xxx-dor7" -> "kv-dev-xxx-"
        # (6 unchanged attributes hidden)
    }

[Arnab-Developer]

If you are setting the unique-length to 0 at the time of module import, that means you don't want to use the name_unique in your resource name. So, why are you using it? Am I missing any of your use case?