[VW 7.4.0] [Bug] Singleton screen included twice in allOpenDevices

Hi,
 
GraphicsDevice>>allOpenDevices
 
Is including the singleton screen twice. This has implications when changing the look, as the whole update gets executed twice.
 
A quick fix is:
 
allOpenDevices
            "Answer a collection of all open graphics devices (screens, printers, etc.).
            Remove erroneous duplicates from the answer. 16/02/07 SIM.
            (caused by double access to Screen registry)."
 
            | openDevices |
            openDevices := OrderedCollection new.
            self allSubclassesDo: [:class | openDevices addAll: class registeredInstances].
            ^openDevices asSet asOrderedCollection
 
Cheers,
 
Stewart