Redmine

I have strange problem with configuration of 3.1-stable in file database.yml there are 3 exactly same configurations: production,development & test
If I print out content of database_config after read from file in <redmineroot>/Gemfile, there are test & development configurations read from config/database.yml nothing for production. {"production"=>nil, "development"=>{"adapter"=>"postgresql", "database"=>"redmine_dev", "host"=>"localhost", "username"=>"redmine", "password"=>"redmine"}, "test"=>{"adapter"=>"postgresql", "database"=>"redmine_test", "host"=>"localhost", "username"=>"redmine", "password"=>"redmine"}}

I'm trying to run

bundle install --without development test