[Akonadi] [Bug 357031] New: Messages reappear or duplicate on moving or deleting in kmail version 15.12

[Wolfgang Mader via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357031

            Bug ID: 357031
           Summary: Messages reappear or duplicate on moving or deleting
                    in kmail version 15.12
           Product: Akonadi
           Version: unspecified
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: grave
          Priority: NOR
         Component: IMAP resource
          Assignee: chrigi_1 at fastmail.fm
          Reporter: Wolfgang_Mader at brain-frog.de
                CC: kdepim-bugs at kde.org, vkrause at kde.org

I experienced the described issue for all akonadi/kmail versions which are
ported to frameworks.

The system I am using is Arch with the following (relevant) packages installed
- plasma-desktop: 5.5.1
- plasma-framework: 5.17
- framework components 5.17
- kde applications: 15.12, including kmail and akonadi

Moreover, as a dependency of digikam, the following kde 4 stuff is there
- kdebase-runtime: 15.12
- kdebase-lib: 15.12
- kdepimlibs4: 4.14.10
- libkipi4: 15.08
- libakonadi-qt4: 1.13.0
- libbaloo4: 4.14.3

I configure two generic imap resource in kmail. The first points to the mail
server of my 
university, the second to the one of my web provider. I do not know what imap
server they are 
running, but likely they are running different software. Thus, I guess, the
issue is not with the 
server but with the client side. I do not configure anything special like
server side subscription 
or sieve script.

On initial population of the mailboxes, everything seem fine. All messages are
there and readable. 
The trouble starts as soon as I start to move around mails manually or via
kmail filters or delete 
messages. Say, I move a message from the Inbox to the Private folder. The
message disappears in the 
Inbox and seems to be moved to Privat. However, the message is not really
moved. I is still in the 
Inbox and reappears the next time kmail refreshes the Inbox. The mail is grayed
in the 
Inbox (everything is good with the messages in Private). In the Inboxr, I can
not click on it, move 
or delete it. It just sits there, grayed out, not touchable. Now, using the web
interface of 
my universities mail system, the mail is marked as deleted in the Inbox, but
still there. At least, 
using the web interface, I can select the massage and delete it for real. Then,
also in kmail, the 
message disappears. Unfortunately, I can not properly name the state of the
deleted message in 
"imap"-terms.

On top of this issue, moved messages start to appear in the target folder
multiple times. There is 
always one instance of the message which is clickable and good, but with time,
multiple grayed out
versions start to accumulate. They seem to be in the same state as the moved
one in the source 
folder.

If there is any more information I can provide, do not hesitate to drop me a
mail.

Reproducible: Always

Steps to Reproduce:
1. Create a Imap resource in framework based kmail
2. Move or delete messages
3. Refresh mailbox and observe grayed out, uncklickable messages

Actual Results:  
Messages are not moved or deleted from mailbox.

Expected Results:  
Messages should be moved or deleted from mailbox.

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