Bubble series: marker loosing stroke if only select state lineColor is set

[KacperMadej]

Behaviour

In bubble series type: marker loosing stroke options if only select state lineColor is set

Live demo with steps to reproduce

http://jsfiddle.net/jdrhowbt/

1. Select and deselect a point
2. Stroke is not visible and the marker has stroke="rgba(NaN,NaN,NaN,NaN)"

Affected browser(s)

Chrome

[TorsteinHonsi]

It's probably the use of 'red' in combination with animation that is the problem. Using hex colors it works: http://jsfiddle.net/highcharts/jdrhowbt/1/