I totally appreciate this. I really do. My defence here is that the test matrix for the way it worked already existed. And the change would have included som

I totally appreciate this. I really do. My defence here is that the test matrix for the way it worked already existed. And the change would have included some unit tests. Further, neither the way it worked, or was changed to work, is an especially complex mechanism. Developer explanations in the bug reports for both were not 'this is going to be hard to maintain', but instead were 'having this configurable will confuse users'.