What in Commons is setting the login destination? By default, the login destination is supposed to be /user/ in a fresh Drupal install. However, in a fresh Commons install, the login destination is the front page. I can't for the life of me find a way to change this back to the Drupal Core default.

The reason I need to change this back to the Drupal Core default is because we are having problems on our Commons site with the "request new password" feature. Occasionally, when a user clicks the one-time login link and goes to set their new password, they are prompted for the "current password" in addition to the new password. This prevents them from setting a new password since they obviously don't know their current one. This doesn't happen every time. I've tried to reproduce the problem on our production site but have been unsuccessful. However, I've received several complaints about this issue. While researching the issue I found that the most common cause is login redirection from the Drupal Core default. In most cases, the problem can be solved by disabling login redirection and restoring the default destination.