Ext Version: 5.0.1

Browser Version : Chrome 37

Description:

I have a simple grid where each columns have a textfield item. Whenever there are no data in grid store and i am trying to move from one textfiled to another using TAB. Getting the error in console that "Cannot read property 'isNonData' of null "


Step to reproduce:

Click into column 1 header text field and press TAB button.


Result that was expected:

Focus should move from column 1 text field to column 2 text field and so on. [As it was in Ext version 5.0.0]


Fiddle: http://ift.tt/1uWYw7z


Result that occurs instead:

when focus is in Column 1 text field and we press TAB button then focus is trying to move from Column 1 text filed to Grid panel cells and this time Grid don't have any data and its gives error in console. [this issue is not reproducible in 5.0.0 and focus moves from left to right while Tabbing]


So basically there are two issue:

Focus is moving from first text field to Grid cell on tabbing

and if Grid don't have any data, then it throw console error