Re: Bug: 'export FOO' not idempotent

[Roman Perepelitsa <roman.perepelitsa@xxxxxxxxx>]

On Mon, Jun 27, 2022 at 11:52 PM Lawrence Velázquez <larryv@xxxxxxx> wrote:
>
> On Mon, Jun 27, 2022, at 5:46 PM, Michael Smith wrote:
> > Thanks for responding! I searched a bit but hadn't made that
> > connection.
>
> Ah, yes -- the discussion was about "typeset", but it also affected
> commands like "export" and "local" which in zsh are basically just
> "typeset" in disguise.

I remember. I was following that discussion. Here the issue is
different. The problem is that `export FOO` doesn't export anything.
Moreover, the subsequent `typeset -p FOO` says that FOO *is* exported.
I think it should work as follows when TYPESET_TO_UNSET is not in
effect (the default):

  % typeset -p FOO
  typeset: no such variable: FOO
  % export FOO
  % typeset -p FOO
  % export FOO=''
  % env | grep FOO
  FOO

Currently it works this the same way except for the last command,
which outputs nothing. I think it should output "FOO" like in the
hypothetical listing above.

Roman.