When I understand it right, `/_changes` does not return all changes, only the ones relevant. So for example when document `my_doc` has been changed 5 times, `/_changes?since=0` will return only one result for `"id": "my_doc"`.
My question is: why does it return deleted docs? If I ask for everything that changed since the beginning, I don't need to know that a document existed that has been deleted meanwhile, do I?
