Code generation fails to prefix the fully qualified reference with global:: when a property is tagged with [UxmlAttribute] or [UxmlObjectReference] that contains a similar namespace segment as the current class's namespace

Reproduction steps:
1. Open the attached project "ReproProj"
2. Check the Project window
3. Notice the folders called "MyLibrary.SomeLibrary.Extention" and "SomeLibrary"
4. Observe the Console

Expected result: No namespace Errors exist
Actual result: Namespace Errors like “Unity.UIToolkit.SourceGenerator\Unity.UIToolkit.SourceGenerator.UxmlSerializedDataGenerator\MyLibrary.SomeLibrary.Extension.UxmlObjectExample.gen.cs(27,62): error CS0234: The type or namespace name 'SomeClass' does not exist in the namespace 'MyLibrary.SomeLibrary“ are present

Reproducible with: 6000.0.57f1, 6000.2.4f1, 6000.3.0a6

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested