use Arel::Visitors::Dot#visit_edge where it would simplify
use Arel::Visitors::Dot#visit_edge where it would simplify

kmcphillips/rails,MSP-Greg/rails,Erol/rails,joonyou/rails,Edouard-chin/rails,bogdanvlviv/rails,esparta/rails,lcreid/rails,joonyou/rails,kddeisz/rails,yahonda/rails,rails/rails,joonyou/rails,Vasfed/rails,lcreid/rails,BlakeWilliams/rails,Stellenticket/rails,MSP-Greg/rails,BlakeWilliams/rails,BlakeWilliams/rails,kddeisz/rails,MSP-Greg/rails,EmmaB/rails-1,esparta/rails,georgeclaghorn/rails,georgeclaghorn/rails,esparta/rails,kmcphillips/rails,EmmaB/rails-1,bogdanvlviv/rails,Edouard-chin/rails,Stellenticket/rails,lcreid/rails,Erol/rails,rails/rails,Envek/rails,kmcphillips/rails,rails/rails,Vasfed/rails,yawboakye/rails,bogdanvlviv/rails,Stellenticket/rails,bogdanvlviv/rails,kddeisz/rails,georgeclaghorn/rails,Envek/rails,Edouard-chin/rails,yawboakye/rails,Envek/rails,Edouard-chin/rails,georgeclaghorn/rails,MSP-Greg/rails,kmcphillips/rails,esparta/rails,Envek/rails,EmmaB/rails-1,yawboakye/rails,Erol/rails,Stellenticket/rails,Vasfed/rails,Vasfed/rails,yawboakye/rails,lcreid/rails,Erol/rails,joonyou/rails,yahonda/rails,rails/rails,yahonda/rails,kddeisz/rails,yahonda/rails,BlakeWilliams/rails