Make `OperationExtension` store the absolute shape ID (#2276)

* Do not alter Operation shape ID

* Add OperationExtensionExt test

* Add CHANGELOG.next.toml entry

* Apply suggestions from code review

Co-authored-by: Luca Palmieri <20745048+LukeMathWalker@users.noreply.github.com>

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Co-authored-by: Luca Palmieri <20745048+LukeMathWalker@users.noreply.github.com>