See one example
Redis 27.0.0 accepts the misspelled key auth.passwrod. The baseline and changed renders have the same object-set hash, so the key changed nothing and Helm gave no warning.
auth:
passwrod: wrong-key-is-ignoredThis record proves that one key on one chart version. It does not claim that every possible Redis value has been tested.
Check the record
Open the Redis values diagnostic. It records both render hashes, the no-change result, and the limit of the check.
Do this next
Choose the ignored-values question, add your chart and values, and run the generated comparison locally.