Conflicts_with fails during Validate even if one of the values is Unkown

[Iduoad]

Terraform CLI and Framework Versions

$ terraform version
Terraform v1.10.0

$ go list -m github.com/hashicorp/terraform-plugin-framework
github.com/hashicorp/terraform-plugin-framework v1.13.0

Terraform Plugin Framework Code

"image": schema.StringAttribute{
		Optional: true,
		PlanModifiers: []planmodifier.String{
			stringplanmodifier.RequiresReplace(),
		},
        Validators: []validator.String{
          stringvalidator.ConflictsWith(
            path.Expressions{
              path.MatchRoot("source_instance"), 
            }...
          ),
          stringvalidator.AtLeastOneOf(
            path.Expressions{
              path.MatchRoot("image"), 
              path.MatchRoot("source_instance"), 
            }...
          ),
        },
	},
	"source_instance": schema.SingleNestedAttribute{
		Optional: true,
		Attributes: map[string]schema.Attribute{
			"project": schema.StringAttribute{
				Required: true,
			},
			"name": schema.StringAttribute{
				Required: true,
			},
			"snapshot": schema.StringAttribute{
				Optional: true,
			},
		},
		PlanModifiers: []planmodifier.Object{
			objectplanmodifier.RequiresReplace(),
		},
                Validators: []validator.Object{
                   objectvalidator.ConflictsWith(
                       path.Expressions{
                            path.MatchRoot("image"), 
                   }...),
                   objectvalidator.AtLeastOneOf(
                       path.Expressions{
                            path.MatchRoot("image"), 
                            path.MatchRoot("source_instance"), 
                        }...
                  ),
              },
        },

Terraform Configuration

variable "source_instance"{
  default = null
}

resource "my_resource"{
   image = "my_image"
   source_instance = var.source_instance
}

Expected Behavior

terraform validate should run with no errors for the configuration above. Since var.source_instance is Unkown.

Actual Behavior

terraform validate fails with

 Error: Invalid Attribute Combination

with incus_instance.instance1,
on main.tf line 33, in resource "incus_instance" "instance1":
33:   source_instance = var.source_instance

Attribute "image" cannot be specified when "source_instance" is specified

Steps to Reproduce

1. Create a resource with attribute that is using ConflictsWith
2. Define one of the conflicting attribute and pass the other one from a variable (Unknown)
3. terraform validate

Logs

No response

Additional Information

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[austinvalle]

@Iduoad Thanks for reporting the issue over here! The newly released v0.16.0 should have the fix for your described error above.

https://github.com/hashicorp/terraform-plugin-framework-validators/releases/tag/v0.16.0

[Iduoad]

Thank you so much @austinvalle