Resetting Release Conditions - clarity in documentation

The guidance for release conditions at About Release Conditions - Brightspace states:

Note:

 Once a learner meets a release condition, the condition is cleared for that learner and cannot be reset. For example, if you attach a release condition to a discussion topic requiring learners to achieve more than 60% on a quiz before they can access that topic, and one of your participants receives 72% on the quiz but you adjust their grade to 55%, they will be able to access the topic because they did meet the requirement at some point.

However this isn't true. For example, if you release something based on "Has not received a grade item", the item disappears when a grade is assigned. However if you release something based on the grade score, it does remain released when the score changes to something outside of the rule parameters.

Equally, conditions based on group membership seem to reset when the user is removed from the group.

Is there any more accurate documentation available for which rule types do reset? I need to find a workaround for something that we used to do with groups that has been broken by the recent change restricting group size to 3000 members.

(I get the impression from recent PIE contributions that there is a lot of appetite from the community for release conditions to be more flexible, but not much enthusiasm from D2L to prioritise this at present, hopefully somebody is taking note and can change that.)