bug#62757: 28.2; M-x pr-interface raises error

[Robert Pluim]

>>>>> On Mon, 10 Apr 2023 22:00:31 +0300, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Keith Waclena <keith@lib.uchicago.edu>
    >> Date: Mon, 10 Apr 2023 12:53:05 -0500
    >> 
    >> 
    >> M-x pr-interface raises an error on multiple machines (all running the
    >> same Emacs version).  To reproduce:
    >> 
    >> 1. emacs -Q
    >> 2. M-x load-library RET printing RET
    >> 3. M-x pr-interface RET
    >> 
    >> An error is raised:
    >> 
    >> widget-default-create: Wrong type argument: listp, "*scratch*"

    Eli> I can reproduce this in Emacs 28.2, but not in the pretest of what
    Eli> will become Emacs 29.1.  So I guess this bug was already fixed.

This was fixed as part of Bug#60501

Robert
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