Cant use cache_policy_id, because another parameters are required

[ByJacob]

Found a bug? Maybe our Slack Community can help.

Describe the Bug

When try use cache_policy_id i got error
Error: error creating CloudFront Distribution: InvalidArgument: The parameter ForwardedValues cannot be used when a cache policy is associated to the cache behavior. status code: 400, request id: 9421ef45-20d3-4824-8e69-9b4e9c43af87
But when i try set null in forward parameters i get error:

Error: expected ordered_cache_behavior.0.forwarded_values.0.cookies.0.forward to be one of [all none whitelist], got 

Expected Behavior

CDN will implement with set policy

Steps to Reproduce

Steps to reproduce the behavior:

1. Configure cdn (https://github.com/cloudposse/terraform-aws-cloudfront-cdn/tree/master/examples/wordpress)
2. Set cache_policy_id to 4135ea2d-6df8-44a3-9df3-4b5a84be39ad
3. terraform apply

Screenshots

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Environment (please complete the following information):

Anything that will help us triage the bug will help. Here are some ideas:

• OS: Linux
• Version Ubuntu 20.04

Additional Context

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