#8795: unique_together validation fails on model forms that exclude unique 
fields
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          Reporter:  [EMAIL PROTECTED]  |         Owner:  nobody
            Status:  new                |     Milestone:  1.0   
         Component:  Forms              |       Version:  SVN   
        Resolution:                     |      Keywords:        
             Stage:  Unreviewed         |     Has_patch:  0     
        Needs_docs:  0                  |   Needs_tests:  0     
Needs_better_patch:  0                  |  
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Comment (by julien):

 My call here is "don't do that". You shouldn't save the form if you know
 the model instance can't be complete. It's actually normal that it fails:
 the form is valid, the instance is not.

 If for example you had a required field your model, but that was excluded
 in the form. `form.save()` would also fail, and for a good reason.

 I would use `form.save(commit=False)` in your code instead, and then
 manually fix the problematic fields.

-- 
Ticket URL: <http://code.djangoproject.com/ticket/8795#comment:3>
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