[dolphin] [Bug 507762] New: "Keep single dolphin window" setting does not work when Dolphin has been Flatpak'd

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=507762

            Bug ID: 507762
           Summary: "Keep single dolphin window" setting does not work
                    when Dolphin has been Flatpak'd
    Classification: Applications
           Product: dolphin
      Version First unspecified
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: nate at kde.org
                CC: kfm-devel at kde.org
  Target Milestone: ---

STEPS TO REPRODUCE
1. Install Dolphin from Flathub, and uninstall it from distro repos
2. Launch the Flatpak Dolphin
3. Configure > Interface > Folders & Tabs > Check the checkbox for "Keep a
single Dolphin window, opening new folders in tabs"
4. Close the config window, but keep the main window open
5. Launch Kate and open a file
5. File > File Actions > Open Containing Folder


OBSERVED RESULT
The folder opens in a new Dolphin instance


EXPECTED RESULT
The folder opens in a new tab of the existing Dolphin instance


SOFTWARE/OS VERSIONS
Operating System: KDE Linux 2025-08-01
KDE Plasma Version: 6.4.80
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.15.8-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ Ultra 5 226V
Memory: 16 GiB of RAM (15.1 GiB usable)
Graphics Processor: Intel® Graphics

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