sequences.extras: Make sure assoc-reduce is working on an alist.
sequences.extras: Make sure assoc-reduce is working on an alist.

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