Drop events are triggered by single clicks about draggable-points HOT 1 OPEN

Some problems remains:

description:

with draggable options activated on the x-axis of a series, a single click on a point generates a DROP events with a negative shift on the x-axis only when categorical values on x-axis

step to reproduce based on http://jsfiddle.net/highcharts/AyUbx/ :

1 / single click generates a drop on serie 3

when you add draggableX: true, to serie 3

a single click on a point from series 3 will generate a drop with a shift of -.0.5 on the x axis

2/ not reproduced when deleting the 2 first series and keeping series 3

    series: [ {
        data: [0, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4],
        draggableX: true,
        draggableY: true
    }]

3/ reproduced with categorical x-axis

i.e. deleting the 2 first series and keeping series 3
and uncommenting the categories on the xAxis

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },
...

    series: [ {
        data: [0, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4],
        draggableX: true,
        draggableY: true
    }]

from draggable-points.