fix incorrect valueType for optional arrays
fix incorrect valueType for optional arrays

joncottonskyuk/EVReflection,joncottonskyuk/EVReflection,zhouguangjie/EVReflection,alecthomas/EVReflection,christophercotton/EVReflection,christophercotton/EVReflection,zhouguangjie/EVReflection,alecthomas/EVReflection