Issue Summary

Terraform allows users to set value of "operations_routing_rule" "is_default =true" even though it shouldn't. 

This property is supposed to be read-only, but you can set it using the Terraform provider. If you try to set it to "true," this does not work properly, despite it seems it would.

Steps to Reproduce

1. Use Terraform version 1.9.3
2. Create a routing rule using the provided Terraform code with 'is_default' set to true.
3. Apply the changes and observe the error message regarding the inconsistent result for the 'is_default' attribute.

Expected Results

At the moment, this property is supposed to be read-only, so the system should not accept user editing its value and the error should be pretty clear about that.

Actual Results

The below exception is thrown in the xxxxxxx.log file:

Error: Provider produced inconsistent result after apply

When applying changes to
atlassian-operations_routing_rule.default_routing_rule["XXXXX"]
provider "provider[\"registry.terraform.io/atlassian/atlassian-operations\"]"
produced an unexpected new value: .is_default: was cty.True, but now cty.False. 

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available