Right side file list shows duplicate files when a file is inserted multiple times

[SirYodaJedi]

Describe the Bug

This is a purely visual bug, and doesn't affect the left side file list, as shown here:

Since it's purely visual, it goes away after saving and reopening.

To Reproduce

1. Open a BSP (possibly also affects other archive types, haven't tested).
2. Drag and drop a file onto the right side file list multiple times.
3. Observe the duplicate entries on the right side, and singular entry on the left side.

VPKEdit Version

v5.0.0-beta3

Operating System

Windows 10 22H2