IFCEARTHWORKSFILL renders with visual fringe artefacts (geometry leaking through mesh)

[vovka236]

Describe the bug 📝

Environment

• @thatopen/components version: 3.3.2
• @thatopen/components-front version: 3.3.3
• @thatopen/fragments version: 3.3.6
• Browser: Chrome / Edge
• Model: IFC bridge model containing IFCEARTHWORKSFILL

Description
When loading an IFC model containing IFCEARTHWORKSFILL, the element renders with
visual artefacts - thin white vertical lines appear beneath pier foundation elements,
as if geometry is leaking through the mesh surface. The model renders correctly in
BIMvision desktop 3.1.2.

Screenshots

Reproduction ▶️

No response

Steps to reproduce 🔢

Viadotto Acerno.zip

1. Load the attached IFC file
2. Observe the IFCEARTHWORKSFILL element in 3D view
3. Rotate camera to view from below/side angle

System Info 💻

System:
    OS: Windows 11 10.0.26200
    CPU: (24) x64 AMD Ryzen 9 7900X3D 12-Core Processor
    Memory: 10.77 GB / 31.12 GB
  Binaries:
    Node: 24.12.0 - C:\Program Files\nodejs\node.EXE
    npm: 11.12.1 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 148.0.7778.97
    Edge: Chromium (143.0.3650.75)
    Firefox: 145.0.2 - C:\Program Files\Mozilla Firefox\firefox.exe
    Internet Explorer: 11.0.26100.8115

Used Package Manager 📦

npm

Error Trace/Logs 📃

No response

Validations ✅

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• The provided reproduction is a minimal reproducible example of the bug.