Henry Story wrote:

So this shows that :modified is all that is needed. We can get the "modified-since" behavior as shown
above.

Clever, but you still have to assume the input is good data and reflects reality; ie this is still optimistic concurrency, is prone to false negatives and all that. It's not been established that's ok place to start from.

"Fetch me a requirement" :)

cheers
Bill

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