#28073: RemoveField.state_forwards() crashes with AttributeError: 'NoneType' 
object
has no attribute 'is_relation'
---------------------------------+------------------------------------
     Reporter:  Logan Gunthorpe  |                    Owner:  nobody
         Type:  Bug              |                   Status:  new
    Component:  Migrations       |                  Version:  1.11
     Severity:  Normal           |               Resolution:
     Keywords:                   |             Triage Stage:  Accepted
    Has patch:  0                |      Needs documentation:  0
  Needs tests:  0                |  Patch needs improvement:  0
Easy pickings:  0                |                    UI/UX:  0
---------------------------------+------------------------------------

Comment (by Logan Gunthorpe):

 I'm not exactly sure how I got the exact migrations I have.  I'm pretty
 sure I created the model with the onetoonefield, then set it as
 primary_key in a second migration (thus removing the id field).

 However, trying to reproduce this with a minimal setup always seems to
 work. I wonder if I did something really stupid and remove the id field
 from the initial migration. It was so long ago I can't really say for
 sure. Adding it back in seems to fix my problem.

 If you want to assume that's what happened close this report I'm fine with
 that as I have a reasonable fix.

 Thanks,

 Logan

--
Ticket URL: <https://code.djangoproject.com/ticket/28073#comment:5>
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