[DNM] [NP-2802] Make predicates ContextAware

[KernelDeimos]

Adding DNM because I want to test a serializable sink solution.

[lchanmann]

Discussed with Eric offline to try overriding 'deepClone' instead.

[KernelDeimos]

The deepClone approach gives me the system context, but to check if preconditions are met the session context is needed. There is also a security concern with predicates accessing the system context.