[emacs-w3m:13348] reload twice with minimal (?) example and 'emacs -q'

I spoke too soon in the other thread when
I said I didn't have the error anymore.

It doesn't appear when _following links_, only
when I do *searches*.

Here is how to reproduce the error with
'emacs -q':

    (require 'w3m)
    (require 'w3m-search)
    (w3m-search-do-search 'w3m-goto-url w3m-search-default-engine "hello Emacs-w3m!")

Versions:

    GNU Emacs 25.1.1 (arm-unknown-linux-gnueabihf,
    GTK+ Version 3.22.11) of 2017-09-16, modified
    by Debian

    w3m/0.5.3+git20170102

    1.4.569

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