Calculate parent task done ratio based on subtask status.
If "Calculate the issue done ratio with" is set to "Use the issue field" done ratio for parent is calculated as weighted done ratio of subtasks. And it works just fine.
But if "Calculate the issue done ratio with" is set to "Use the issue status", done ratio for parent now based on it's status rather than subtasks'.
I think it will be usefull to calculate parent's done ratio based on subtasks in any case, not only if done ratio was set manualy but if it was set by issue status also.