Steps to reproduce:
1. Create a new project
2. Select "Enable layout Debugger" (Edit > Project Settings > UI Toolkit)
3. Open UI Layout Debugger window (Window > UI Toolkit > Layout Debugger)
4. Select a window and press “Record Layout Updates” button
5. Make changes in the selected window and stop recording
6. Type something in the search bar that wouldn’t provide any results (e.g. “1”)
7. Press “Search” button and observe the Console

Actual results: “Last item reached.
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:224)” warning is thrown
Expected results: No warnings or warning about no search results is thrown

Reproducible with versions: 6000.0.57f1, 6000.2.3f1, 6000.3.0b1
Couldn't reproduce with versions: 2021.3.56f1, 2022.3.66f1 (No UI Layout Debugger)

Tested on (OS): macOS Sequoia 15.4 (M4)