Created attachment 54222 [details]
rucenter_message.mbox

Version:           2.0.89
OS:                Linux

I receive messages in koi-8 encoding with Cyrillic letters in Subject.
Other email clients (thunderbird, roundcube) and kmail (from KDE 4.4.x) displays this subject normally, but kmail2 displays badly - I see � symbols instead of Cyrillic letters in message subject, but body show normally.
I think that kmail2 don't look to 'Content-Type: text/plain; charset=KOI8-R' field when displaying subject, but it must look.


Reproducible: Always

Steps to Reproduce:
Try to import message from attach mbox to kmail folder.

Actual Results:  
You will see "����� DOMAIN.RU: ���� ����������� ������������� 15-DEC-2010" subject of message

Expected Results:  
You must see: "Домен DOMAIN.RU: срок регистрации заканчивается 15-DEC-2010" in subject

OS: Linux (x86_64) release 2.6.35-23-generic
Compiler: cc