shuffle containment checking for optimization
shuffle containment checking for optimization

now it should be checking less (tested, functionally identical to before)

Poojawa/Citadel-Station-13-portworks,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13,Citadel-Station-13/Citadel-Station-13-6th-Port,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13-6th-Port,Citadel-Station-13/Citadel-Station-13-6th-Port,Citadel-Station-13/Citadel-Station-13,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13,Citadel-Station-13/Citadel-Station-13,Citadel-Station-13/Citadel-Station-13,Citadel-Station-13/Citadel-Station-13,Poojawa/Citadel-Station-13-portworks,Poojawa/Citadel-Station-13-portworks,Citadel-Station-13/Citadel-Station-13-6th-Port