Cannot execute binary from /proc/self/fd/N while bash can do that #12542

> fish --version
fish, version 4.5.0
> /proc/self/fd/3 --version 3</bin/bash
fish: Unknown command. '/proc/self/fd/3' exists but is not an executable file.

/proc/self/fd/3 --version 3</bin/bash
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
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