How to reproduce Rails Lighthouse Bug #6566

1. Download source from git://github.com/joeytheman/Rails3-Bug6566.git .

2. Run "bundle install".

3. Run "rake db:schema:load".

4. Navigate to "/users" and create 2 users.

5. Navigate to "/team" and create a new team with 2 teammates with the following parameters
	-Teammate 1
	-- User => 1
	-- Team => nil
	-- Position => "C"
	-Teammate 2
	-- User => 2
	-- Team => nil
	-- Position => "A"

6. Navigate to "/team/1/edit".

7. Set the position of player 1 to "A" and the position of player 2 to "C".

8. Attempt to save.