An earlier version of this API acted like git in that some objects would be staged in a temporary directory which would be then committed in one go by moving files around. The API doesn't match most users expectations though, as while the stage is nice as a high-level API it isn't really suited for low-level APIs. While the stage was removed, the APIs were never renamed. Rename them now so that they match expectations. https://bugzilla.gnome.org/show_bug.cgi?id=707644