- Wrote some bad commit annotations to the badcommit table.
- Viewed them in the web UI and used `bin/repository reparse --change ...` to reparse them. Saw "this is bad" messages.
- Ran migration, verified that valid "badcommit" rows were successfully migrated to become "hint" rows.
- Viewed the new web UI and re-parsed the change, saw "unreadable commit" messages.
- Viewed a good commit; reparsed a good commit.