Comment 10 for bug 1579708

"This is expected behaviour since policy is that users' modifications of conffiles (for example, files in /etc/mysql/) should be preserved." makes absolutely no sense when the problem is that /etc/mysql has been deleted. In the case where there is no config to overwrite, the script should reinstall default values, and there is no danger in doing so. What the package maintainers seem to be saying is "hey, too bad your attempts to fix bad config went wrong and you decided to start again, we won't help you at all."