UINAME in nodedefs does not work when namespace is used

[zicher3d]

Tried in MaterialX 1.38.8.

Steps to reproduce: 1 - Unzip and put the attached nodedefs file in your libraries. 2 - Start materiaX Graph Editor 3 - Press Tab to bring up list of nodes 4 - Select the "namespace_debug" group 5 - The node "nodedef_without_namespace" correctly uses the uiname string 6 - The node "test:ND_nodedef_with_namespace" does NOT use the uiname string.

The documentation for uiname in nodedefs specifically says: "This is most useful when the defines a namespace, so the user doesn't need to see a full namespaced path for the node." Which is the exact case it fails in this test.

namespace_debug.zip

Please check also the video below. The video highlights 2 issues. This ticket is about the first part of the video.

https://github.com/user-attachments/assets/d578721c-c2da-4b2e-9e2b-b1f253f413fe