Template details window shows default Title, Description, and documentation components when no template is selected in the "Create New Shader Graph Asset" window

Steps to reproduce:

1. Create a new Unity project
2. Open the "Create new Shader Graph Asset" window (Project window > right click > Create > Shader Graph > From Template...)
3. Select a newly created shader graph item in the "Project" window
4. Go to the "Inspector" window and check "Use As Template"
5. Save changes
6. Unselect the created shader graph item in the "Project" window
7. Open the "Create new Shader Graph Asset "window again (all the items in the Project window should be unselected)
8. Observe the result

Actual results: None of the templates are selected by default in the templates list. Default "Title", "Description" strings, and documentation link icon are displayed in the template details window

Expected results: If no template is selected, the details window should be empty

Reproducible with versions: 6000.5.0a5

Can’t test with versions: 6000.0.64f1, 6000.3.3f1, 6000.4.0b4 as search functionality is not available in these streams.

Tested on (OS):  macOS - Tahoe 26.2