internal: Be more forgiving about building `Taxonomy` objects. Add `setting_name`. The setting name of a taxonomy is whatever name is used to assign terms of that taxonomy to a page. If the taxonomy is "multiple", this is the name of the taxonomy. If not, it's the term name (a singular name).

import os


def slashfix(path):
    if path is None:
        return None
    if isinstance(path, str):
        return path.replace('/', os.sep)
    fixed = []
    for p in path:
        fixed.append(p.replace('/', os.sep))
    return fixed