Regression to 4.7.1

Tested with

Product: Qt Design Studio(PROJECTSTORAGE) 4.8 (4.8.0)
Based on: Qt 6.8.3 (MSVC 2022, x86_64)
Built on: May  5 2025 19:16:50
From revision: 3aca6bb235

Steps to reproduce:

• Create a 3D project
• Import some 3D asset to a project from Assets view -> +
• Drag and drop it from Assets to scene in Navigator
• Toggle "Show only visible components" 

--> Added model should stay visible in navigator

• Delete the .q3d asset from assets view
• Reimport the same asset
• Drag and drop it from Assets to scene in Navigator

--> Added model should be visible in navigator