Issue with Grid with Grouping + Checkbox Sel Model + Cell Editing

Hi,

I came across a very strange issue today with Ext 4.2.1 Grid.

My use case is as follows:

Grid is having (1) grouping feature

(2) Cell editing plugin

(3)Check box selection model

Here is are the steps to reproduce the issue:

(1)Let all grouping be in expanded mode.

(2)Collapse only the last but previous group.

(3)Now try selecting any records or trying double clicking on editable cell of the last grouping when the previous grouping is in collapsed state

Issue is: I am not able to select records from the last grouping as well as not able to edit cells.

Check here in Fiddle