I have three distinct environments: test, QA, and prod. Test and QA share the same database but have different front-ends. This means there can be UI changes in the test environment that are not present in QA. What should be the testing stategy in such scenario? Should a full test be conducted in the test environment when a front-end change is made, and then only a smoke test in QA? Or vice versa? Or should a full test be conducted in both environ..