This almost keeps the revision metadata format as is. It sends the raw
metadata (xml instead of the parsed json before).
Questions:
- do we keep the raw metadata attached to the revision as it's currently done?
-> currently the deposit server now writes those to the directory, not on the
revision as it cannot.
-> if we need to change that, that's a more involved refactoring that's needed
since no loader writes to the directory right now.
- revision: do we send on raw metadata per xml file or one joined xml (as it is
in the current diff).
Let's discuss ^