#423 Errors not remembered in Advance Normalisation

[Terry O'Neill]

When in Advanced Normalisation any time the "Update Table" button is used any entry that had an Error and Error Reason shown will have Error changed to be unticked and the Error Reason removed. The Error and Error Reason values should be maintained until such time as the entry with the error is normalised again at which point the new error and error reason (or lack of error and error reason) should replace what is there.