Refactor `default_scoped` to avoid creating extra relation and merging
Refactor `default_scoped` to avoid creating extra relation and merging

gcourtemanche/rails,vipulnsward/rails,travisofthenorth/rails,prathamesh-sonpatki/rails,fabianoleittes/rails,schuetzm/rails,ttanimichi/rails,pvalena/rails,yahonda/rails,tgxworld/rails,repinel/rails,yhirano55/rails,eileencodes/rails,kmayer/rails,kirs/rails-1,maicher/rails,brchristian/rails,alecspopa/rails,tgxworld/rails,illacceptanything/illacceptanything,utilum/rails,mathieujobin/reduced-rails-for-travis,Sen-Zhang/rails,Vasfed/rails,yawboakye/rails,shioyama/rails,EmmaB/rails-1,kirs/rails-1,EmmaB/rails-1,lcreid/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,aditya-kapoor/rails,BlakeWilliams/rails,yhirano55/rails,kmcphillips/rails,Erol/rails,travisofthenorth/rails,joonyou/rails,esparta/rails,illacceptanything/illacceptanything,travisofthenorth/rails,kddeisz/rails,arunagw/rails,rails/rails,arunagw/rails,utilum/rails,Edouard-chin/rails,koic/rails,felipecvo/rails,travisofthenorth/rails,schuetzm/rails,BlakeWilliams/rails,assain/rails,Edouard-chin/rails,jeremy/rails,MSP-Greg/rails,koic/rails,esparta/rails,gcourtemanche/rails,untidy-hair/rails,kamipo/rails,assain/rails,maicher/rails,deraru/rails,hanystudy/rails,yahonda/rails,lcreid/rails,kddeisz/rails,rafaelfranca/omg-rails,betesh/rails,bogdanvlviv/rails,kamipo/rails,betesh/rails,vipulnsward/rails,yalab/rails,matrinox/rails,lcreid/rails,odedniv/rails,iainbeeston/rails,rafaelfranca/omg-rails,schuetzm/rails,mohitnatoo/rails,illacceptanything/illacceptanything,Stellenticket/rails,georgeclaghorn/rails,pvalena/rails,Sen-Zhang/rails,Vasfed/rails,rails/rails,ledestin/rails,yawboakye/rails,MSP-Greg/rails,BlakeWilliams/rails,prathamesh-sonpatki/rails,kmcphillips/rails,flanger001/rails,notapatch/rails,rails/rails,georgeclaghorn/rails,yasslab/railsguides.jp,tgxworld/rails,joonyou/rails,illacceptanything/illacceptanything,kaspth/rails,baerjam/rails,kaspth/rails,illacceptanything/illacceptanything,bogdanvlviv/rails,palkan/rails,Envek/rails,MSP-Greg/rails,untidy-hair/rails,gfvcastro/rails,tjschuck/rails,flanger001/rails,tjschuck/rails,yahonda/rails,kirs/rails-1,kmcphillips/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,Envek/rails,georgeclaghorn/rails,kamipo/rails,joonyou/rails,jeremy/rails,ttanimichi/rails,illacceptanything/illacceptanything,utilum/rails,printercu/rails,Edouard-chin/rails,kmcphillips/rails,vipulnsward/rails,gcourtemanche/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,yasslab/railsguides.jp,mathieujobin/reduced-rails-for-travis,untidy-hair/rails,vipulnsward/rails,gfvcastro/rails,flanger001/rails,brchristian/rails,ledestin/rails,Stellenticket/rails,hanystudy/rails,odedniv/rails,gauravtiwari/rails,kddeisz/rails,Edouard-chin/rails,palkan/rails,baerjam/rails,Vasfed/rails,Erol/rails,esparta/rails,bogdanvlviv/rails,MSP-Greg/rails,yasslab/railsguides.jp,matrinox/rails,betesh/rails,assain/rails,arunagw/rails,yalab/rails,fabianoleittes/rails,mohitnatoo/rails,yawboakye/rails,mechanicles/rails,Vasfed/rails,Sen-Zhang/rails,Envek/rails,illacceptanything/illacceptanything,printercu/rails,palkan/rails,matrinox/rails,jeremy/rails,Envek/rails,lcreid/rails,yasslab/railsguides.jp,iainbeeston/rails,illacceptanything/illacceptanything,arunagw/rails,iainbeeston/rails,prathamesh-sonpatki/rails,joonyou/rails,baerjam/rails,brchristian/rails,eileencodes/rails,aditya-kapoor/rails,mathieujobin/reduced-rails-for-travis,rafaelfranca/omg-rails,shioyama/rails,gauravtiwari/rails,mechanicles/rails,yahonda/rails,iainbeeston/rails,bogdanvlviv/rails,Stellenticket/rails,aditya-kapoor/rails,illacceptanything/illacceptanything,utilum/rails,repinel/rails,maicher/rails,notapatch/rails,eileencodes/rails,starknx/rails,tgxworld/rails,odedniv/rails,kmayer/rails,tjschuck/rails,kmayer/rails,untidy-hair/rails,jeremy/rails,BlakeWilliams/rails,felipecvo/rails,starknx/rails,georgeclaghorn/rails,gfvcastro/rails,repinel/rails,kddeisz/rails,fabianoleittes/rails,rails/rails,ledestin/rails,gauravtiwari/rails,notapatch/rails,yalab/rails,felipecvo/rails,yalab/rails,assain/rails,pvalena/rails,alecspopa/rails,gfvcastro/rails,koic/rails,tjschuck/rails,yhirano55/rails,baerjam/rails,Stellenticket/rails,yhirano55/rails,shioyama/rails,aditya-kapoor/rails,flanger001/rails,alecspopa/rails,deraru/rails,schuetzm/rails,ttanimichi/rails,palkan/rails,mohitnatoo/rails,shioyama/rails,printercu/rails,Erol/rails,prathamesh-sonpatki/rails,yawboakye/rails,esparta/rails,mechanicles/rails,deraru/rails,repinel/rails,hanystudy/rails,printercu/rails,mechanicles/rails,fabianoleittes/rails,betesh/rails,Erol/rails,deraru/rails,notapatch/rails,pvalena/rails,EmmaB/rails-1,starknx/rails,mohitnatoo/rails,eileencodes/rails,kaspth/rails