Clef positioning and key signatures

[Phil Holmes]

If I shift the position of the clef, and make an associated change to the 
position of middle C, I'd expect the key signature to move, but it doesn't. 
Am I not doing something, doing something wrong, or is this a bug?

{ \key f \major c'1 }
{ \set Staff.clefPosition = #0 \set Staff.middleCPosition = #-4 \key f 
\major c'1 }

--
Phil Holmes

ClefPosition.png
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