score:1

Accepted answer

So just add some lines to the combobox:

d3.selectAll('#familytreecontentsvg .node')
    .each(function (d) {
        d.fixed = false;
    })
    .classed("fixed", false)

And I moved the svg object into the drawings while just initializing it empty above. Also I created an id for the SVG itself. Hope it helps. Please tell me if that is fixing your troubles.

Updated fiddle: http://jsfiddle.net/xg9fjze3/9/


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