1) Create a new file
2) Open the model inspector for the new file.
3) Type "my model" into the name field and hit tab.
4) Go back to name field and change name to "My Model".
5) Get a message saying 'The model could not be renamed to “My Model.ldr” because that name is already taken. Please choose a different name which does not duplicate an existing model’s name.'.
The check that brings up this message should probably ignore the name being edited.