RadGrid resizetoFit doesn't honor the grouped by sub headers

[SP]

resizeToFit(false, true) works perfectly when the grid doesn't have group by. When the group by is applied to the grid, the resizeToFit(false, true) doesn't honor the group by sub headers. The data seems to be overflowing in the grouped by header as shown in the screenshot.

How can I achieve the autofit all the contents in the grid including the grouped by sub headers?

[Pavlina]

Hello,

Unfortunately resizeToFit() is not implemented to work for grouped header, but only for grid header and filter row as pointed in the article below:
http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/client-side-programming/gridcolumn-object/methods/resizetofit-

However, if you want you can log this request in our feedback portal, so other customers can also vote for it and raise its priority:
http://feedback.telerik.com/Project/108

Regards,
Pavlina
Telerik