title: Django ForeignKey created empty?
body: <p>This seems very basic and I must be missing something, but here goes anyways...</p>
  
  <p>With two models like so:</p>
  
  <pre><code>class School(models.Model):
      name    = models.CharField("Official School Name", max_length=128)
      address = models.TextField("Address of the School", max_length=256)
      mascot  = models.CharField("Name of the School Mascot", max_length=128)
  
  class StudentProfile(models.Model):
      name   = models.CharField(max_length=128)
      school = models.ForeignKey(School)
  </code></pre>
  
  <p>If the student gets created before the school, how do I give 'school' a default empty value? Is it <em>blank</em> or <em>null</em> or <em>what</em>?</p>
  
  <p>Thanks!</p>