Properties view search does not work correctly, "No match found"

Steps to reproduce:

• Create a project
• Select e.g. root rectangle
• Type "fill color" in Properties view search
• -> Expected to see is this result:
  
• Instead, there's "No match found." text shown:
  
• Broken in:
  Product: Qt Design Studio(PROJECTSTORAGE) 4.8 (4.8.0)
  Based on: Qt 6.8.2 (MSVC 2022, x86_64)
  Built on: Jun  6 2025 06:57:22
  From revision: 46a136acdf
• Working correctly in:
  Product: Qt Design Studio(PROJECTSTORAGE) 4.8 (4.8.0)
  Based on: Qt 6.8.2 (MSVC 2022, x86_64)
  Built on: Jun  4 2025 01:28:15
  From revision: 1620aa041f