Watch out, your metadata is showing
The Arizona supreme court has just decided that the metadata of a document is governed by the same rules as the document. If the metadata is attached to a public record, then the metadata too is a public record; so if, as a police officer disciplined after blowing the whistle on colleagues, you ask for your performance results then you should get metadata like who wrote them and when so you can prove whether they were written before or after you made yourself unpopular.