Add a wrapper over caching input check.

Summary:
This is another backport comming from Core's PR10192. getting these wrong would cause invalid information to be cached.

Depends on D530

Test Plan:

make check
../qa/pull-tester/rpc-tests.py

Reviewers: freetrader, CCulianu, #bitcoin_abc, dagurval

Reviewed By: #bitcoin_abc, dagurval

Differential Revision: https://reviews.bitcoinabc.org/D531