#5572: Can't have empty fixture file with Auto Increment Field in Model
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Reporter:  anonymous   |       Owner:  nobody                                   
           
  Status:  new         |   Component:  Serialization                            
           
 Version:  SVN         |    Keywords:  empty fixture file json serialization 
auto increment
   Stage:  Unreviewed  |   Has_patch:  0                                        
           
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 You can't have a empty fixture file when model has Auto Increment Field.

 class Category(models.Model):
     id = models.AutoField(primary_key=True)
     parent_id = models.IntegerField()
     name = models.CharField(maxlength=200)

 Problem installing fixture 'c:\mysite\apps\category\fixtures
 \initial_data.yaml': 'NoneType' object has no attribute 'anchor'

 This error is due to auto incremented primary key.  you can't have
 empty fixture file.

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Ticket URL: <http://code.djangoproject.com/ticket/5572>
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