[kmail2] [Bug 506133] New: Attachment saved to disk disappears after closing KMail

[Hieu Van]

https://bugs.kde.org/show_bug.cgi?id=506133

            Bug ID: 506133
           Summary: Attachment saved to disk disappears after closing
                    KMail
    Classification: Applications
           Product: kmail2
      Version First unspecified
       Reported In:
          Platform: Debian unstable
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: commands and actions
          Assignee: kdepim-bugs at kde.org
          Reporter: hieutv2211 at gmail.com
  Target Milestone: ---

SUMMARY
I recently encountered a relatively rare phenomenon: After saving an attachment
to my specified folder, I attempted to open it with Okular and there was no
problem. However after a few minutes (probably when I had just closed KMail),
the file was gone without any trace. It was not in Trash. I also tried doing a
/home-wide search and it was still nowhere to be found.

STEPS TO REPRODUCE
1. Save the attachment to a custom folder.
2. Open it (not sure if this is relevant).
3. Close KMail.

OBSERVED RESULT
The file is gone. It is not trashed, but deleted from disk.

EXPECTED RESULT
The file should have been there, precisely where it has just been saved.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 13
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.2

ADDITIONAL INFORMATION
Although I have not digged deep into source code of KMail, I have observed that
KMail keeps a temporary copy of the attachments. My theory is that when saving
the attachment to disk, the final files might be copied from those temporary
ones. Due to some reasons however, the reference to temporary files also got
"redirected" to final saved files, thus causing them to be destroyed when KMail
is closed.

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