rails/rails — pull request #3844 by alexeymuranov (2011-12-03 15:36:05+00:00)
Title: Fix set_fixture_class by fixing create_fixtures

Properly check the `class_names` hash parameter of `create_fixtures` method to not overwrite passed fixture classes.

This is intended to fix Issue #2572 (replaces my previous attempts, like #3821). There are no tests yet, i will try to add them with another commit. All comments welcome.