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Versions may have revisions. One or more revisions of a version can exist and they are used to govern necessary workflows and filter their queries. Each revision is uniquely identified by three parts:
- revision_name
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- .
- revision_provider
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- :the revision owner.
- revision_timestamp : revision creation timestamp.
Tags are a set of three boolean flags(accepted, published and mark_deleted) which will be used to mark/tag a revision with a specific state. This tags could be used as filtering criteria.
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