resource: Prevent private state data loss on Delete method error #864
+484
−2
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Closes #863
The previous implementation assumed that Terraform core would preserve private state similar to "regular" state when a provider returned an error diagnostic while destroying a resource. The core implementation instead always uses the response data, which the framework was previously always discarding. This change corrects the errant design while also enabling provider logic to potentially update the private state in this situation.