title: How do you force AccountManager to show the "Access Request" screen after a user has already allowed access?
body: <p>When using <a href="http://developer.android.com/reference/android/accounts/AccountManager.html#getAuthTokenByFeatures%28java.lang.String,%20java.lang.String,%20java.lang.String%5b%5d,%20android.app.Activity,%20android.os.Bundle,%20android.os.Bundle,%20android.accounts.AccountManagerCallback%3Candroid.os.Bundle%3E,%20android.os.Handler%29">AccountManager::getAuthTokenByFeatures</a>, an Access Request screen is shown for the user to allow or deny access to the account. After a user allows access, subsequent calls (with the same arguments) return the auth token without prompting the user.</p>
  
  <p>How do you clear the state to make sure the Access Request prompt appears? (This would useful at the very least for development, testing, and demo purposes.)</p>