## Issue
In 38c13cf5, an additional `doGetAndPopulatePreferences` was added in `doSignIn` to ensure we have populated the preferences at least once. With that, `doHandleSyncComplete` can skip `doGetAndPopulatePreferences` is there is no change in the hash.
The addition broke the "initial sync lock", thus incorrectly allowing users to change preferences when the process is not completed.
## Change
I think the additional call is no longer needed since we now store a local hash for comparison, so `doGetAndPopulatePreferences` wouldn't be incorrectly skipped in the first ever `doHandleSyncComplete`.
b6d21692e6