Fixed #12881: Corrected handling of inherited unique constraints. Thanks for report fgaudin.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12797 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/model_forms/mforms.py

@@ -0,0 +1,32 @@
+from django.forms import ModelForm
+
+from models import Product, Price, Book, DerivedBook, ExplicitPK, Post, DerivedPost
+
+class ProductForm(ModelForm):
+    class Meta:
+        model = Product
+
+class PriceForm(ModelForm):
+    class Meta:
+        model = Price
+
+class BookForm(ModelForm):
+    class Meta:
+       model = Book
+
+class DerivedBookForm(ModelForm):
+    class Meta:
+        model = DerivedBook
+
+class ExplicitPKForm(ModelForm):
+    class Meta:
+        model = ExplicitPK
+        fields = ('key', 'desc',)
+
+class PostForm(ModelForm):
+    class Meta:
+        model = Post
+
+class DerivedPostForm(ModelForm):
+    class Meta:
+        model = DerivedPost