[Bug 251770] /bin/sh: false expansion

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251770

--- Comment #3 from Jilles Tjoelker <jilles at FreeBSD.org> ---
I think you are right; the formulation "Each variable assignment shall be
expanded prior to assigning the value" is not compatible with our behaviour to
expand everything before assigning anything.

On the other hand, a=$b b=$a U where U is not empty and neither a special
builtin nor a function can still place swapped values in the utility
environment (although it is not required to).

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