[dolphin] [Bug 496476] New: Dolphin not mounting multi device BTRFS file systems correctly

[Stuart K. Smith]

https://bugs.kde.org/show_bug.cgi?id=496476

            Bug ID: 496476
           Summary: Dolphin not mounting multi device BTRFS file systems
                    correctly
    Classification: Applications
           Product: dolphin
           Version: 24.08.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: stuartksmith at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
A multi device BTRFS file system appears multiple times under Devices - once
per device/partition - displayed as either the device name or label if it
exists.

If NOT defined in fstab: clicking on one of the devices in the file system will
mount it under /media/user/ normally. Clicking on the second device, adds an
additional mount under /media/devices and does not focus the active pane to the
newly mounted file system nor does it change the Device icon and remove the
"disconnected" icon overlay.

If defines in fstab: clicking on one of the devices will mount the file system
per the /etc/fstab entry. However, subsequent clicks on the Devices entry
results in multiple new mounts under /media/username/label that are
simultaneously accessible as is the fstab mount location. 

STEPS TO REPRODUCE
1. Create multi device BTRFS file system
2. Edit /etc/fstab to define mount point (and execute "sudo systemctl
daemon-reload")
3. Open Dolphin and click on either device.

OBSERVED RESULT
Either file system mounts via fstab appears in Dolphin active pane, or mounts
under /media/user/ depending on which device is clicked on.

EXPECTED RESULT
Only one entry in Devices per multi device file system.
Mounted file system appears in active pane when selected.
Subsequent clicks set focus correctly and do not add additional mounts.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDEneon User Edition 24.04 
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0 
Qt Version: 6.8.0

ADDITIONAL INFORMATION
I have observed somewhat different behavior in Dolphin with different file
systems

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