Path scheme not initialized on delete translation confirmation form

Having a non-default path-scheme for edit paths, $handler->getEditPath($langcode) returns false in function entity_translation_delete_confirm since initPathScheme has not been called. I fixed this in the simplest possible way, but it feels a little bit wrong that the path-scheme must me initialized explicitly outside as a public class method. If it could be initialized lazily when needed that would be better, but am not familiar enough with the code base to make such a change with confidence. (Perhaps every method that returns a path-variable could call some method "ensurePathSchemeInitialized, that makes sure that initPathScheme has been called at least once).