Shadow is not applied to split tootip

[kamilkulig]

Expected behaviour

Code:

tooltip: {
      split: true,
      shadow: true
}

Should apply shadow to all split tooltip boxes.

Actual behaviour

It doesn't.

Live demo with steps to reproduce

http://jsfiddle.net/kkulig/orp4mwb1/

Affected browser(s)

All

[kamilkulig]

Internal note:
http://jsfiddle.net/kkulig/orp4mwb1/
Solution is to add: tt.shadow(options.shadow); inside renderSplit function.