1481144 - UTF-8 Character in Subject leaks over boundaries

Status: RESOLVED DUPLICATE of bug 1390015

(Thunderbird :: Message Reader UI, defect)

Description

[forksmith]

Attachment: screenshot.jpg

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20100101

Steps to reproduce:

(Thunderbird 52.9.1 64bit on Fedora 28)

Get mail with (specific) utf-8 characters in Subject line.

The Subject line in question:
"Subject: =?UTF-8?Q?=E2=9C=85_VREDACTED_-_..._ist_o?=
 =?UTF-8?Q?nline!_=F0=9F=9B=8E=EF=B8=8F_Pr=C3=BCfen_Sie_?=
 =?UTF-8?Q?Ihre_Sonderaktionen_und_verdienen_Sie_mehr!?="


Actual results:

Only the first utf8 character is affected. 
Its a purple tinted V or checkmark.
This one leaks way over the other subject lines in the mails list and over the metadata in the header info section.

https://


Expected results:

Should be properly resized into the line.

Comment 1

[forksmith]

https://postimg.cc/image/9u89i1ry5/
link got lost

Comment 2

[Jorg K (CEST = GMT+2)]

Thunderbird 60 will fix this issue.

Comment 3

[Jorg K (CEST = GMT+2)]

Or more precisely: TB 60 (available now) fixes this issue.