Live feed - sub category data and time should be update.

Steps :-
1.http://52.66.76.140.
2.login admin
3. sub Category > mange sub category > click edit  

Bug:- 

• where located mange sub category and click on edit button and edit data and save observe that last update date and time not displayed. 

Expected:-

• If i edit data and save last update date and time should be displayed in mange category.