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Changes between Initial Version and Version 1 of Ticket #16931

-              initial
+              v1
 For example:
+{{{
 class CommentMixin(FormMixin, SingleObjectMixin):
     pass
+}}}
 In that case, we expect both FormMixin and SingleObjectMixin to build their context.
 However, as none of them use super in their get_context_data do use super, we only get the FormMixin context.