Cannot restore based on removed date

[jeremi]

If I try to do something like :
Article.all_objects.filter(removed__range=(start, end))
This will return the right number of objects to be restored

Article.all_objects.filter(removed__range=(start, end)).restore()
It will restore all the article that were deleted instead of only the one matching the query. The issue seems to be due to the get_unpatched method which remove the conditions related to the removed field.
What is the use of removing this conditions ?