Re: Question about let binding behavior

[Rudolf Schlatte]

Stefan Monnier via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

>> although this also works in emacs-lisp (for now?):
>                                          ^^^^^^^^^^
>                                          +1
>
> IOW, if you need it to be a fresh new data-structure, use `cons/list`.

Or call `copy-tree' on the constant, as the OP did in the end IIRC.