[O] Bug: ox-publish(html) needs org-link-unescape while treating external search link [9.0.9 (9.0.9-68-g492420-elpaplus @ /home/farseer/.emacs.d/elpa/org-plus-contrib-20170807/)]

[Farseer He]

Problem: ox-publish (to html for example) generates incoherent external
links for search links like [[file:foo%20bar.org::*h1][link example]].
Suppose the h1 element in "foo bar.html" has ID "#orgffffff", the
generated external html anchor link may refer to ID "#org000000".

Probable reason: Different IDs get generated to org-publish-cache, 1 for
h1 in "foo bar.org", the other (generated by org-resolve-external-link)
for h1 in "foo%20bar.org". I suppose that "org-link-unescape" should be
called before written to cache.

Emacs  : GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2018-07-05
Package: Org mode version 9.0.9 (9.0.9-68-g492420-elpaplus @ 
/home/farseer/.emacs.d/elpa/org-plus-contrib-20170807/)