Animation oninit with clipChart doesn't work

Hi,

Refering to an old issue ( #502 in your comments), i try to do an initialization animation only on chart lines with

oninit: function () {
this.clipChart
.attr('width', 0)
.transition().duration(1000)
.attr('width', this.width);
}

Check this fiddle : http://jsfiddle.net/jd02o4L9/

I tried to use onrendered but it is called almost two times on init.

Ugo