[dolphin] [Bug 483436] New: Incorrect display of file icons (thumbnails)

[bluelupo]

https://bugs.kde.org/show_bug.cgi?id=483436

            Bug ID: 483436
           Summary: Incorrect display of file icons (thumbnails)
    Classification: Applications
           Product: dolphin
           Version: 24.02.0
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: view-engine: details mode
          Assignee: dolphin-bugs-null at kde.org
          Reporter: info at sinweb.de
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 167095
  --> https://bugs.kde.org/attachment.cgi?id=167095&action=edit
Screenshot of folder view from dolphin

SUMMARY
***
The thumbnails are not displayed correctly in the Dolphin file manager (see
attachment file).

The user “michael” is in the following groups:
$ id -a michael
uid=1000(michael) gid=1000(michael)
Gruppen=1000(michael),4(adm),20(dialout),24(cdrom),27(sudo),29(audio),30(dip),44(video),46(plugdev),50(staff),100(users),113(netdev),116(lpadmin),117(scanner),125(sambashare),129(vboxusers),5001(music),5002(photo),131(kvm),998(adbusers),997(docker)

In the screenshot you can see that the file “Z” belongs to the user root and
the group “photo” has write permissions (permission 660). I can also change
this because the user “michael” is in the “photo” group. Unfortunately, the
lock symbol for the file “Z” is then displayed in Dolphin, which is definitely
wrong. This error did not occur under Plasma5 and the thumbnails were displayed
correctly, i.e. without the lock symbol.

As soon as the file permissions are 660 (see screenshot), the display in
Dolphin is incorrect, as the user’s group permissions are presumably not taken
into account.
***


STEPS TO REPRODUCE
1. start dolphin
2. look at the details mode

OBSERVED RESULT
lock symbol is displayed despite write access to the file

EXPECTED RESULT
correct display of thumbnails/icons if write permissions on the file allow it
(group and user permissions)

SOFTWARE/OS VERSIONS
Distribution   : KDE neon 6.0
Kernel         : 6.5.0-25-generic
SystemD        : systemd 249 (249.11-0ubuntu3.12)
Plasma         : 6.0.0
Qt             : 5.15.12
Kwin X11       : 6.0.2
Kwin Wayland   : 6.0.2

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