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ID will be checked first, but if the value is the default zero UUID, topic name will be used instead. If an ID is specified and the ID does not exist, the request will fail regardless of allow_auto_topic_creation. 
The request will an error indicating the topic ID did not exist. Thus, existence of a given topic ID is not considered sensitive information. 
If name and ID are included, but the name does not match the ID, the request will also fail.

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