[Bug 256559] New: kmail (viewer?) queues multiple/redundant message downloads

[happy]

https://bugs.kde.org/show_bug.cgi?id=256559

           Summary: kmail (viewer?) queues multiple/redundant message
                    downloads
           Product: kmail
           Version: 1.13.5
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: messageviewer
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: hh.kde.crash at gmail.com


Version:           1.13.5 (using KDE 4.5.1) 
OS:                Linux

I had the "detailed progress" selected (ie: the arrow that shows the tasks
queued) because I had a large email message that I was moving.

Anyway, while this was still up, I chose a new folder to display and kmail
began to refresh the message view for the selected meail and the attached
screenshot is the result.  Note that there is multiple reads for a single
message queued with *only one* 'update' pending... I wasn't clicking lots of
times etc.

I'm assuming that this is a real issue and not a display artefact with the
"progress indicator/task queue" thingy...

I've marked this as "severity-crash" not because I experienced any crash but
because I believe having seen this kind of problem before that it (multiple
downloads queued) could possibly be a cause of other threading/queuing related
crashes.

Reproducible: Sometimes

Steps to Reproduce:
Happened in this session as often as I tried, often enough that I could start
the screen capture app and grab a snapshot.

Seem to work always with a message not already downloaded (not cached?)
Choose a message not already or recently displayed and make sure that the
"detailed" progress stuff is visible.

Actual Results:  
For messages not alread cached, multiple 

Expected Results:  
single read of message queued, message display blocks until read works or
fails.

OS: Linux (i686) release 2.6.35-22-generic-pae
Compiler: cc
Kubuntu is distro, no Ubuntu or Kubuntu in pop up (yeah, I know it's Debian
derived!)

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