Bug 490966

SUMMARY
When I'm using the terminal to navigate between LaTeX files (opened in a TUI program) and the output PDF (opened in Okular/firefox), I'm using the `xdg-open` command a lot. However it (and the `kde-open` command it calls underneath) do not accept relative paths that go outside of the current working directory's direct children, no matter the depth.

STEPS TO REPRODUCE
1. Open a terminal, and navigate to any directory, let's say `~/Documents`.
2. Invoke `kde-open .` (or `xdg-open`, it should give the same result). It should open Dolphin/your filesystem browser without issues.
3. Invoke `kde-open ../foo` where foo is any directory under `~` . It should prompt an error message stating the unit is not configured properly and the operation is not permitted.

OBSERVED RESULT
Whenever supplying an "invalid" URI/path, it outputs a message with the following template:

```
kf.kio.gui: Failed to launch process as service: "app-org.kde.dolphin@<hash>.service" "org.freedesktop.DBus.Error.AccessDenied" "Unit app-org.kde.dolphin@<hash>.service failed to load properly, please adjust/correct and reload service manager: Operation not permitted"
Unit app-org.kde.dolphin@<hash>.service failed to load properly, please adjust/correct and reload service manager: Operation not permitted
```

EXPECTED RESULT
It should open the file/directory without issues.

SOFTWARE/OS VERSIONS
Qt Version: 6.7.2
Kernel Version: 6.9.11-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon 780M Graphics
Memory: 30.7 GiB of RAM
Graphics Processor: AMD Radeon 780M
Manufacturer: Framework
Product Name: Laptop 13 (AMD Ryzen 7040Series)
System Version: A7

ADDITIONAL INFORMATION
- It works perfectly fine if the command `gio open ../problematic/relative/path` is used instead of `[xdg|kde]-open` !
- The workflow defined above worked just fine a few weeks ago. I'm not able to pinpoint it more specifically than that, sorry.
- The commands perform as expected if an absolute path to the "problematic" paths are used instead.
- Since it is mentioned nowhere on the system info, I'm running the KDE spin of Fedora, and the "full" version information of the `kde-cli-tools` package is `6.1.3-2.fc40`.