Hi, Custom header content is getting duplicated in expandable grid as shown in the attached image. I followed the [official ](http://ui-grid.info/docs/#/tutorial/302_custom_header)tutorial to create the same.  Please help me to remove the duplicate header. Thanks in advance.
Hi,
Custom header content is getting duplicated in expandable grid as shown in the attached image. I followed the official tutorial to create the same.
Please help me to remove the duplicate header. Thanks in advance.