Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Select any GameObject in the Hierarchy window
3. Click on the Tag dropdown in the Inspector window and select "Add Tag..."
4. Create a new tag by pressing the "" button named "New tag"
5. Click the "" button again and enter identical name "New tag"
6. Hold the "Enter" keyboard button
7. Observe the Console window

Actual results: "EndLayoutGroup: BeginLayoutGroup must be called first." errors are thrown until the "Enter" keyboard key is no longer held

Expected results: No errors are thrown

Reproducible with versions: 6000.0.56f1, 6000.1.16f1, 6000.2.2f1, 6000.3.0a6

Tested on (OS): macOS Silicon Sequoia 15.6