330767 - does not thread by other prefixes than RE: nor by Thread-Topic header

Status: RESOLVED DUPLICATE of bug 29179

(Thunderbird :: General, enhancement)

Description

[Thomas Nygreen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; nb-NO; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1
Build Identifier: Thunderbird version 3 alpha 1 (20060316)

Threading by subject does not thread by other prefixes than "RE:".

Threading by headers does not thread by the Thread-Topic header.

Reproducible: Always

Steps to Reproduce:
1. Sort by anyting, threaded

Independent of mail.strict_threading and mail.thread_without_re
Actual Results:  
Mails with matching subjects but with different prefixes than RE: are not threaded together, even if they have exact the same Thread-Topic header.

This happened independent of the mail.strict_threading and mail.thread_without_re settings.

Expected Results:  
With mail.strict_threading = false, threading should also be done by other prefixes than "RE:" (e.g. "SV:" in norwegian)

Regardless of mail.strict_threading, threading should also be done by the Thread-Topic header

See screenshot for an example

Comment 1

[Thomas Nygreen]

Attachment: example screenshot

This screenshot shows that messages 3 to 6 i the list are not threaded, although they are clearly related. Except for the first (number 6 in the list) they all contain the Thread-Topic header referring to the previous message.

The first two messages are using References and In-reply-To correctly, and can be threaded thereby. The "RE: SHDSL" messages are threaded by subject.

Comment 2

[zug_treno]

Duplicate of bug 319665 -> Core bug 29179.

*** This bug has been marked as a duplicate of 29179 ***