Problems with var return type

[misu]

I am not sure that I am understanding how the var return type work, I have this 
code: 
    
    
    proc findComponent*(e: var Entity, T: typedesc): Option[var T] =
        for c in e.components.mitems:
            if c of T:
                result = some(T(c))
        result = none(var T)
    
    
    Run

I am trying to find a component in e, then return an var of that component, I 
get this error: 
    
    
    Error: type mismatch: got <Option[physics.TransformComponent]> but expected 
'Option[var None]'
    
    
    Run

What does the `var None` in the return type mean? Is it just not possible to 
wrap a var in an Option?