dep_meta's comment records a measured 404: leaving owner/repo as None
made every same-repo dependency fail, because forgejo resolves the
dependency's repo from the request BODY rather than the URL. Nothing
stopped a later tidy-up from simplifying them back to None.
index() promises "error instead of wrapping". A wrap would not fail
loudly -- it would hand the forge a negative index it looks up as some
other issue.
74b48c5afa