urls: only create linked-hash if query is f.
urls: only create linked-hash if query is f.

tgunr/factor,bjourne/factor,bjourne/factor,bjourne/factor,slavapestov/factor,bpollack/factor,AlexIljin/factor,factor/factor,AlexIljin/factor,slavapestov/factor,slavapestov/factor,tgunr/factor,factor/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,nicolas-p/factor,bjourne/factor,tgunr/factor,factor/factor,AlexIljin/factor,nicolas-p/factor,AlexIljin/factor,mrjbq7/factor,bpollack/factor,bjourne/factor,tgunr/factor,bpollack/factor,bpollack/factor,nicolas-p/factor,tgunr/factor,mrjbq7/factor,bjourne/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,slavapestov/factor,AlexIljin/factor,nicolas-p/factor,factor/factor,slavapestov/factor,bpollack/factor,mrjbq7/factor,nicolas-p/factor,factor/factor,slavapestov/factor,mrjbq7/factor,nicolas-p/factor,tgunr/factor,slavapestov/factor,mrjbq7/factor,nicolas-p/factor,bjourne/factor