"Planned Value does not match Config Value" incorrectly states conditions when the error will occur

[melinath]

Per https://developer.hashicorp.com/terraform/plugin/sdkv2/resources/data-consistency-errors#planned-value-does-not-match-config-value:

This occurs for attribute schema definitions that are Optional: true and Computed: true

However, it also occurs for Required fields, such as hashicorp/terraform#37431