"Unique Key" is not updated until page reload

[benloh]

Johsua Notes:
if you change the "Unique Key" field currently, generating tokens works correctly, but you cannot use any of the tokens until you reload the page (it seems to still be expecting old tokens in the login window). Lemme know if you want more details or a separate issue.

Originally posted by @jdanish in #450 (comment)

[benloh]

This should be fixed with lock-mgr changes but test

1. Do not log in
2. Go to Settings > Unique Key
3. Change the value and Save Settings
4. Go to User Tokens and generate a new token
5. Try to enter the token -- it should work