Subgrid width problem

Hello,

if i use this example
dhtmlx.com/docs/products/dhtmlxG … grids.html
and i shift (for example) the column ‘Book Title’ completely to the right the vertical scrollbar is not updated.
Why not?

Greeting, Carsten

Width of grid is defined by master grid, columns of sub-grid do not affect it.

Then the master grid must updated the scrollbar.