parent category editor editing a child category and vice versa

I was wondering how the editing in categories is like.
If a site is submitted to a parent category where there are no editors, will a child category editor review the submitted the site? and if a site is submitted to a child category which has no editor, can a parent category editor review the site?

A listed editor on a category can edit that category and any categories below it. The editor cannot edit in categories above the one where they are listed.

Editalls/Metas/Admins can edit in any category.