Custom doc type that extends Folder use default icon in nuxeo-document-content, but not in create pop-up

Custom doc type that extends Folder use default icon in nuxeo-document-content, but not in create pop-up

Step to reproduce:

• Create a custom document type thats extends "Folder"
• Select "folder.gif" as Icon, and "folder-100.png" as "Large icon"
• Save changes in Nuxeo Studio
• Add new doc type as possible child of Folder doc type
• Deploy changes in your new Instance

• Create a new custom doc type on your instance
• The "Create" pop-up it's not able to find the icon
• The content creted in shown in nuxeo-document-content with his icon

The behabiour should consistent between the pop-up and the web element. Both must use the same icon.