help is welcome about the 'source-is-missing' error with the cherrytree packaging

[Patrice Duroux <patrice.duroux@gmail.com>]

Hi,

Following #1030720, the maintainer reported #1030743 and now I am trying
to package a new upstream version (0.99.55).
I am still facing the same lintian error and tried to understand the
job of SourceMissing.pm.
So my question is why this test data file
(test//data_данные//test.export.html) is considered by lintian? And
would it be also the case (not reported) with some other .html files
in the same sudir?

$ tar tf cherrytree_0.99.55+dfsg.orig.tar.xz | grep  '.html$'
cherrytree_0.99.55/tests/data_данные/test.export.html
cherrytree_0.99.55/tests/data_данные/KeepNote/toppage/page.html
cherrytree_0.99.55/tests/data_данные/KeepNote/folder2/folder2-1/page3/page4/page.html
cherrytree_0.99.55/tests/data_данные/KeepNote/folder2/folder2-1/page3/page.html
cherrytree_0.99.55/tests/data_данные/KeepNote/trash/trashpage/page.html
cherrytree_0.99.55/tests/data_данные/rednotebook_data.html
cherrytree_0.99.55/tests/data_данные/notecase_test.html
cherrytree_0.99.55/tests/data_данные/mimetype_html.html

The 'tests' subdir is only used to run a test after the built.
This file is considered by lintian but is not intended to be and is
not part of the produced .deb package.

Regards,
Patrice

ps: https://lintian.debian.org/sources/cherrytree