Data Source opennebula_templates raises type error at sort_on field despite correct type is provided

[ijaureguialzo]

Description

When searching a template including a correct value in sort_on field, a type error is raised.

If the sort_on variable is commented, it runs normally.

Terraform and Provider version

Terraform v1.12.2
on linux_arm64

• provider registry.terraform.io/cloudflare/cloudflare v4.52.0
• provider registry.terraform.io/hashicorp/null v3.2.4
• provider registry.terraform.io/opennebula/opennebula v1.5.0

OpenNebula 7.0.0

Affected resources and data sources

• opennebula_templates

Terraform configuration

data "opennebula_templates" "busqueda" {
  name_regex = local.opennebula.vm.template
  sort_on    = "register_date"
  order      = "ASC" # La más reciente
}

Expected behavior

No error when correct value provided.

Actual behavior

Errors despite the provided value is correct.

Steps to Reproduce

Create the data source and run terraform plan.

Debug output

No response

Panic output

Error: type "sort_on" must be one of: id,name,cpu,vcpu,memory,register_date
│
│   with data.opennebula_templates.busqueda,
│   on data.tf line 3, in data "opennebula_templates" "busqueda":
│    3:   sort_on    = "register_date"

Important factoids

No response

References

No response

[MaxGelbakhiani]

provider registry.terraform.io/opennebula/opennebula v1.5.0
Terraform v1.5.7 on darwin_arm64

I'm also affected by this part of my manifest:

data "opennebula_templates" "one_templates" {
  name_regex = local.config.template_regex
  has_cpu    = true
  order      = "ASC"
}

Got the same error:

18:24:48 │ Error: type "sort_on" must be one of: id,name,cpu,vcpu,memory,register_date
18:24:48 │ 
18:24:48 │   with data.opennebula_templates.one_templates,
18:24:48 │   on main.tf line 23, in data "opennebula_templates" "one_templates":
18:24:48 │   23:   sort_on   = "register_date"

[maxalab]

This line seems like a troublemaker

terraform-provider-opennebula/opennebula/data_opennebula_templates.go

Line 37 in 302660a

value := strings.ToUpper(v.(string))

Further the code looks up the allcaps version within the lower case strings.