Your bug report

#59469: 29.0.50; Eshell "for" loop: Calling a non-lisp command (example: /usr/bin/tail) sets the variable exported in the {} block of "for var in list {}" to nil

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 59469@debbugs.gnu.org.

-- 
59469: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59469
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