kmail/kio (KIOJob) KIO::TransferJob::slotData: mimeType() not emitted when sending first data!

[Volodymyr Kolesnykov]

Every time I check my mail, I get messages like

kmail(5059)/kio (KIOJob) KIO::TransferJob::slotData: mimeType() not emitted when sending first data!; job URL = KUrl("pop3s://<email address hidden>:995/index") data size = 0
kmail(5059)/kio (KIOJob) KIO::TransferJob::slotData: mimeType() not emitted when sending first data!; job URL = KUrl("pop3s://<email address hidden>:995/uidl") data size = 0
kmail(5059)/kio (KIOJob) KIO::TransferJob::slotData: mimeType() not emitted when sending first data!; job URL = KUrl("pop3s://<email address hidden>:995/download/") data size = 0

These messages go to ~/.xsession-errors and I can't seem to be able to disable them (I have many email accounts and ~/.xsession-errors grows fast (few days) to several GB whcih is not acceptable).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: kmail 4:4.4.10-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.38-11.47-server 2.6.38.8
Uname: Linux 2.6.38-11-server x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Sat Jul 23 20:22:29 2011
ExecutablePath: /usr/bin/kmail
ProcEnviron:
 LANGUAGE=ru_RU:ru
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: kdepim
UpgradeStatus: Upgraded to natty on 2011-04-01 (113 days ago)
XsessionErrors: (nautilus:4982): EggSMClient-WARNING **: Could not load SM state file '/home/vladimir/.config/session-state/nautilus-1310159005.desktop': Нет такого файла или каталога

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[P (p92)]

same for me and at the same time I got one error popup window about various imap error each time ! (error in imap command received by server)

All was working correctly before the 2 last kde upgrades .