Outlook 2007 "Mark as Not Junk" Dialog Confusion

Outlook 2007 "Mark as Not Junk" Dialog Confusion

Outlook 2007's "Not Junk" button opens the "Mark as Not Junk" dialog. The dialog works correctly if I keep the "Always trust e-mail from <email address>" option checked. That is, the message is removed from the Junk folder and returns to the Inbox.