Reproduction steps:
1. Create a new project
2. File > Build Profiles
3. Add Build Profile
4. Select Build Profile, right-click on any property and select “Search Same Property Value” option
5. Observe the newly opened Search window
Actual result: "[In Project] Unknown filter ...” red text is displayed at the bottom of the Search window
Expected result: No errors are displayed and the search returns matching results
Reproducible with: 6000.0.81f1, 6000.3.21f1, 6000.5.7f1, 6000.6.0b7, 6000.7.0a4
Reproduced on: Ubuntu 24.04, macOS Tahoe 26.5 (M4)
Note: Issue is not reproducible on Platform Settings properties with 6000.0.81f1 and 6000.3.21f1 versions, but is reproducible with other settings, such as Adaptive Performance Settings