[Bug 285089] New: KMail can't display some mails stored in Maildir ("Given item identifier is empty")

[Malte S. Stretz]

https://bugs.kde.org/show_bug.cgi?id=285089

           Summary: KMail can't display some mails stored in Maildir
                    ("Given item identifier is empty")
           Product: Akonadi
           Version: 1.6.0
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: Maildir Resource
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: kde-bugger at msquadrat.de
                CC: richard.vdboom at gmail.com


Created an attachment (id=64939)
 --> (http://bugs.kde.org/attachment.cgi?id=64939)
ls -ltr in ~/.kde/share/apps/kmail/mail/trash/new

+++ This bug was initially created as a clone of Bug #272920 +++

See bug 272920 for the background story.  Short version:  In version 2.0.95
KMail somehow put some mails which were supposed to be stored in my IMAP Trash
folder in the local folders ("KMail Folders") trash folder.  But I couldn't see
them.

Over the time I accumulated quite some mails in that trash folder, nowdays it
shows 73 unread mails but when I select it, I can't see anything, the folder
spinner doesn't stop spinning.  Today I noticed the popup "Kmail Folders: Given
item identifier is empty" for the first time.

I'll attach the full output of ls -ltr in the trash folder, but here's an
excerpt:

mss at TreeHouse:~/.kde/share/apps/kmail/mail/trash/new$ ls -ltr
total 25004
-rw-r--r-- 1 mss mss    2053 2011-05-10 09:27
{d7d6a236-930f-48bf-b903-4bdf2236a522}
-rw-r--r-- 1 mss mss   14580 2011-05-10 09:27
{f018b095-2de2-4e5f-9d11-35de68fb3fe4}
[1043 lines snipped]
-rw-r--r-- 1 mss mss    1249 2011-10-24 11:20
{2be37c9d-c785-49dd-8a66-6a786c301c8e}
-rw-r--r-- 1 mss mss    6172 2011-10-24 12:35
{48181632-f49d-4506-894c-3a6a56206fa1}
-rw-r--r-- 1 mss mss    9838 2011-10-27 11:46 1319708816.R383.TreeHouse

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