windows.com: Prevent release from being called with f, which causes a segfault.
windows.com: Prevent release from being called with f, which causes a
segfault.

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