message: fetch username even if it's in the cache
diff: @@ -34,7 +34,7 @@ export const UsernameScreen = ({navigation}) => {
  // TODO use a debouncer to avoid flickering https://github.com/helfer/apollo-link-debounce
  const [usernameExistsQuery, { loading: loadingUserNameExist, data }] = useLazyQuery(USERNAME_EXIST,
  - // { fetchPolicy: "cache-first" }
  + { fetchPolicy: "cache-and-network" }
  )
  const usernameExists = data?.usernameExists ?? false
  