The Import Activity window only records one asset when multiple assets are duplicated while the Import Activity window is open

How to reproduce:
1. Open the “IN-91469_repro“ project
2. Navigate to Window → Analysis → Import Activity
3. In the Project window, select more than two materials
4. Press “Crtl+D“ to duplicate the materials
5. Observe the imported materials

Expected result: All duplicate materials are recorded
Actual result: Only one duplicate material is recorded

Reproducible with: 2021.3.47f1, 2022.3.55f1, 2023.2.0a6
Not reproducible with: 6000.0.33f1, 6000.1.0a10
Fixed in: 2023.2.0a6

Reproducible on: Windows 10, macOS 14.5
Not reproducible on: No other environment tested