Adding columns / redraw issue

[v-dem]

After I added second column (so, after second call to redraw), I receive "Error: cannot call methods on dragtable prior to initialization; attempted to call method 'redraw'" message. Table is relatively easy, and there's just one handler (on click) on table header (to display text input). And column that was inserted before this error received can't be moved. Others still can be moved. I think there's a problem left after the first call to "redraw". I'm trying to investigate the problem myself, but I don't have much time.