reopen: Default address not always used in checkout pane

Original issue: https://www.drupal.org/node/2070643

Hi, i'm getting the same error, default address not always used in checkout pane.
Tried with 7.x-2.0-rc9 and 7.x-2.x-dev. Drupal 7.50.

I created 2 customer profiles for a user and when i went to the checkout with that user the first profile is allways selected. I also tried with fresh drupal installation and got the same results.

Thanks in advance!!