mmmvvvppp

I'd agree with your assessment of the zip around a tar+gz. `unzip -Z` identifies the downloaded archive as a zip: ``` unzip -Z opentelemetry-webserver-sdk-x64-linux.tgz Archive: opentelemetry-webserver-sdk-x64-linux.tgz Zip file size: 14423713...

There's a note at the bottom of [section 3.3.1 ](https://www.optapy.org/docs/latest/planner-configuration/planner-configuration.html#planningEntityDecorator) that warns: ``` Planning entity __hash__(self) implementations must remain constant. Therefore entity __hash__(self) must not depend on any planning variables....

Thanks for thorough reply! I would say you've answered my original issue as to why `(A, A)` pairings do not cause the constraint to be triggered. Since a pairing `(A,...