Symptom:
When logging in as a user without a complete profile (i.e. one that registered before CRES 4.0 and hasn't logged in, or was migrated from an IEA). The New Account Features page is presented. Fill out the page, type the current password, then hit return. The page is redisplayed instead of saving the data and taking the user to the normal page seen after logging in (Compose Message or Manage Messages depending upon the user's account's configuration).

Also, when the page is redisplayed, whether security question answers are displayed is toggled, and the Enable my Personal Security Phrase checkbox isn't preserved.

Conditions:
Log in as a user without a complete profile (i.e. one that registered before CRES 4.0 and hasn't logged in, or was migrated from an IEA).