[dolphin] [Bug 482899] New: regression: dolphin can't write to folder with group write access

[S. Christian Collins]

https://bugs.kde.org/show_bug.cgi?id=482899

            Bug ID: 482899
           Summary: regression: dolphin can't write to folder with group
                    write access
    Classification: Applications
           Product: dolphin
           Version: 24.02.0
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: s_chriscollins at hotmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
In the following examples, the user's login name will be "username".

Dolphin 24.02.0 included with Plasma 6 cannot write to a folder that has group
write access and a different owner (e.g., mode 775, "root:username" ownership).
This is a regression from Plasma 5 (tested with Dolphin 21.12.3 in Kubuntu).
This bug prevents writing to shared folders in VirtualBox, as the shared
folders have "root:vboxsf" ownership, where the user being a member of the
"vboxsf" group should be able to write to the shared folders.

STEPS TO REPRODUCE
1. Create a folder "testfolder" in your home directory.
2. Change the folder owner while keeping the user's default group (e.g., "sudo
chown root:username testfolder"). By default, this should already be file
access mode 775 where group members have write access, but change this if it is
not.
3. Exit and restart Dolphin (sometimes this is necessary to trigger the bug).
4. Open "testfolder" in Dolphin and try to create or copy a file/folder to this
location.

OBSERVED RESULT
Dolphin forbids the user from creating/copying files within "testfolder".
Performing the file operations via command line is necessary to write to the
folder.

EXPECTED RESULT
Dolphin should recognize group write access to the folder and allow the user to
write to the folder.

SOFTWARE/OS VERSIONS
Linux: KDE neon 6.0
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

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