Adding two test cases for defect MAGN-2593 and 3113

Added two test cases.

MAGN-3113 defect is open but test case is passing because in UI preview is not updating correctly. Still this test case make sense to add because in future after Undo/Redo if don't get correct ( which is {6} ) value this will will help to catch regression. 

I will work with ben to catch actual issue using Test Case.