git_objects: Fix type annotations to accept the old dicts
As discussed in !302 (closed).
also raise warnings while I'm at it.
Depends on !305 (closed).
Migrated from D6331 (view on Phabricator)
As discussed in !302 (closed).
also raise warnings while I'm at it.
Depends on !305 (closed).
Migrated from D6331 (view on Phabricator)