https://bugs.kde.org/show_bug.cgi?id=445562
Bug ID: 445562
Summary: long subject line in UTF-8 is decoded incorrectly
Product: kmail2
Version: 5.14.2
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: kdepim-b...@kde.org
Reporter: zhuravlov...@ya.ru
Target Milestone: ---
SUMMARY
***
When message's subject is:
1) in UTF-8,
2) encoded by Base64 as multi-line,
3) has a character which codepoint is splitted among lines,-
then this character is decoded incorrectly.
***
STEPS TO REPRODUCE
1. Receive a message with subject e.g.
Кассовый чек от ФГАОУВО "ДВФУ" за 16.11.2021
which is encoded as:
Subject: =?utf-8?B?0JrQsNGB0YHQvtCy0YvQuSDRh9C10Log0L7RgiDQpNCT0JDQ?=
=?utf-8?B?ntCj0JLQniAi0JTQktCk0KMiINC30LAgMTYuMTEuMjAyMQ==?=
2. View this message in message list
OBSERVED RESULT
Subject is displayed as:
Кассовый чек от ФГА��УВО "ДВФУ" за 16.11.2021
EXPECTED RESULT
Subject should be displayed as:
Кассовый чек от ФГАОУВО "ДВФУ" за 16.11.2021
SOFTWARE/OS VERSIONS
Linux: 5.3.18-lp152.98-default , x86_64
KDE Plasma Version: 5.18.6
KDE Frameworks Version: 5.71.0
Qt Version: 5.12.7 (built with version 5.12.7)
ADDITIONAL INFORMATION
If message is composed in KMail2 itself, then its subject is single-lined:
Subject:
=?UTF-8?B?0JrQsNGB0YHQvtCy0YvQuSDRh9C10Log0L7RgiDQpNCT0JDQntCj0JLQniAi0JTQktCk0KMiINC30LA=?=
16.11.2021
and this problem doesn't appear.
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