Same as #783

[HeavySnowJakarta]

I have the same bug with #783, but after trying to run zsh -fc 'zmodload zsh/system && sysopen -r -o cloexec -u fd <(true)', it outputs:

zsh:sysopen:1: can't open file /proc/self/fd/12: no such file or directory

And with doing nothing then.