Material: Appeareance settings do not effect mesh objects

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Problem description

Changing appearance properties or assigning a material with appearance properties to a mesh object does not change its appearance.
I can manually change the shape appearance in the property view of the mesh though.

### Full version info

```shell
OS: Windows 11 build 22631
Architecture: x86_64
Version: 1.1.0dev.14555 (Git shallow)
Build date: 2025/08/20 00:00:55
Build type: Release
Branch: main
Hash: 5e4fe3a3c3af46be530969d323368fee8bfcba3b
Python 3.11.13, Qt 6.8.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.8.3
shiboken 6.8.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1
Locale: German/Germany (de_DE)
Navigation Style/Orbit Style/Rotation Mode: CAD/Rounded Arcball/Window center
Stylesheet/Theme/QtStyle: FreeCAD.qss/FreeCAD Light/
Logical DPI/Physical DPI/Pixel Ratio: 96/92.6073/1
Installed mods:
* manifest.json
```

### Subproject(s) affected?

Material

### Anything else?

_No response_

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct