When creating an new tool storage and adding tools to it, the added surface appears twice in the DataManager. Steps to reproduce:
- Start NavigationToolManager
- Press button "Create New Tool Storage"
- Press button "Add"
- Choose device type "Virtual Tracker"
- Press button "Finished"
-> Two surfaces of the same name but of different color appear
Reproduced on Win 7 32 bit MITK build and Win 10 64 bit MITK build