almende/vis — pull request #15 by Gillingham (2013-10-16 21:44:49+00:00)
Title: Fix dataSet parsing of Moment objects

Calling just moment.clone() won't do anything but error. Since moment.isMoment(object) guarantees object is already a moment instance, just calling moment(object) will clone
it per the moment docs http://momentjs.com/docs/#/parsing/moment-clone/