message: Fix show-full-names on fresh installs
diff: @@ -27,7 +27,7 @@ const fetchName = async username => {
  export default async () => {
  const myUsername = getUsername();
  - const cache = (await getCachedUsers())[storageKey];
  + const cache = (await getCachedUsers())[storageKey] || {};
  // {sindresorhus: [a.author, a.author], otheruser: [a.author]}
  const selector = `.js-discussion .author:not(.refined-github-fullname)`;
  