Bug#256337: kmail: KMail desn't poperly sort IMAP folders hierarchy

[Switch <switch@ono.com>]

Package: kmail
Version: 4:3.2.2-2
Severity: normal

This is the problem scenario:
- fetchmail running a fetching mail from several accounts
- procmail delivering it to different Maildir Folders
- courier-imap running on the same host (local)
- KMail, sometimes, especially when it is started with -check put
  "Inbox" folder as some other folder child.
  Here is a screenshot: http://bulma.net/~pacoros/tmp/KMailBug.jpeg

Sometimes, when trying to read this "Inbox" folder and there is a new mail, KMail
crashes. I can't reprodice this crash just now, if it happens, I'm going
to add debug info to this bug report.

This problem doesn't make KMail unusable, but makes KMail very unstable.
mutt and Mozilla Thunderbird does not unsort IMAP folders. Neither KMail
did, it's happening sice 2 weeks ago approximately.


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.0
Locale: LANG=es, LC_CTYPE=es (ignored: LC_ALL set to es_ES@euro)

Versions of packages kmail depends on:
ii  kdebase-kio-plugins       4:3.2.2-1      KDE I/O Slaves
ii  kdelibs4                  4:3.2.3-2      KDE core libraries
ii  ktnef                     4:3.2.2-2      KDE TNEF viewer
ii  libart-2.0-2              2.3.16-5       Library of functions for 2D graphi
ii  libc6                     2.3.2.ds1-13   GNU C Library: Shared libraries an
ii  libfam0c102               2.7.0-5        client library to control the FAM 
ii  libgcc1                   1:3.3.4-1      GCC support library
ii  libice6                   4.3.0.dfsg.1-5 Inter-Client Exchange library
ii  libjpeg62                 6b-9           The Independent JPEG Group's JPEG 
ii  libkcal2                  4:3.2.2-2      KDE calendaring library
ii  libkdenetwork2            4:3.2.2-2      KDE Network library
ii  libkdepim1                4:3.2.2-2      KDE PIM library
ii  libksieve0                4:3.2.2-2      KDE mail/news message filtering li
ii  libmimelib1               4:3.2.2-2      KDE mime library
ii  libpcre3                  4.5-1.1        Perl 5 Compatible Regular Expressi
ii  libpng12-0                1.2.5.0-6      PNG library - runtime
ii  libqt3c102-mt             3:3.2.3-3      Qt GUI Library (Threaded runtime v
ii  libsm6                    4.3.0.dfsg.1-5 X Window System Session Management
ii  libstdc++5                1:3.3.4-1      The GNU Standard C++ Library v3
ii  libx11-6                  4.3.0.dfsg.1-5 X Window System protocol client li
ii  libxext6                  4.3.0.dfsg.1-5 X Window System miscellaneous exte
ii  libxrender1               0.8.3-7        X Rendering Extension client libra
ii  xlibs                     4.3.0.dfsg.1-5 X Window System client libraries m
ii  zlib1g                    1:1.2.1.1-3    compression library - runtime

-- no debconf information