For an ORES model, we are interested in the following two kinds of revisions:

The pair (rev 3, parent: rev 0) as approved in a revison chain like:

• rev 0 approved (auto or manual)
• rev 1
• rev 2
• rev 3 manually approved

The pair (rev 2, parent: rev0) as rejected in a revision chain like:

• rev 0 approved (auto or manual)
• rev 1
• rev 2
• rev 3 revert back to rev 0 without approval

The methods used in T194594 need to be verified and documented prior to building larger data sets.