w3m-toggle-inline-images no longer works

[=?utf-8?b?56mN5Li55bC8?= Dan Jacobson <jidanni@xxxxxxxxxxx>]

T runs the command w3m-toggle-inline-images, but it doesn't work
anymore.

1. emacs -q -f w3m
2. Browse https://www.jidanni.org/
3. Hit T

Images don't appear.


System Info to help track down your bug:
---------------------------------------
emacs-w3m-git-revision
 => "e522a44"
emacs-w3m-version
 => "1.4.632"
emacs-version
 => "GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.20)\n of 2020-05-17, modified by Debian"
mule-version
 => "6.0 (HANACHIRUSATO)"
system-type
 => gnu/linux
(featurep 'gtk)
 => t
(featurep 'w3m-load)
 => t
w3m-version
 => "w3m/0.5.3+git20200502"
w3m-type
 => w3m-m17n
w3m-compile-options
 => ("lang=en" "m17n" "image" "color" "ansi-color" "mouse" "gpm" "menu" "cookie" "ssl" "ssl-verify" "external-uri-loader" "w3mmailer" "nntp" "gopher" "ipv6" "alarm" "mark" "migemo")
w3m-language
 => nil
w3m-command-arguments
 => nil
w3m-command-arguments-alist
 => nil
w3m-command-environment
 => (("LC_ALL" . "C"))
w3m-input-coding-system
 => utf-8
w3m-output-coding-system
 => utf-8