Incorrect Positioning in Float mode #18

I'm having an issue with float mode. It seems that as soon as you click and hold a widget (without actually dragging anywhere), it picks a new location for the widget (as indicated by the placeholder dashed box), 1 or 2 spaces below.

Here is my configuration -
[{"x":0,"y":0,"width":12,"height":5},{"x":0,"y":5,"width":4,"height":2},{"x":4,"y":5,"width":4,"height":2},{"x":8,"y":5,"width":4,"height":2},{"x":0,"y":7,"width":2,"height":2},{"x":3,"y":7,"width":4,"height":2},{"x":7,"y":7,"width":4,"height":2},{"x":8,"y":9,"width":4,"height":2},{"x":0,"y":10,"width":4,"height":2},{"x":4,"y":10,"width":4,"height":2},{"x":9,"y":11,"width":3,"height":2},{"x":0,"y":12,"width":4,"height":2},{"x":4,"y":12,"width":4,"height":2}]

To test this, click and hold one of the widgets in the bottom row. You will see that it instantly incorrectly positions the place holder.