Change event of a combo box is triggering twice

Issue No: CT-1296
Created 5/4/2017 9:53:14 AM
Type Bug
Priority Major
Status Closed
Resolution Fixed
Fixed Version 17.1
Description 1. Do a hard reload.   2. Open an existing contract.   3. Open an existing sequence.   4. Give the break point in onItemChange Event.   5. Change the Contract Item (While changing the contract Item, Inventory Item will change)   6. Event will fire for the first time where newValue is null and oldValue will have some value.   7. Event will fire second time where newValue will have some value and oldValue will be null.   8. Remove the break point. Close the sequence screen without saving it.   9. Open the sequence screen.   10. Put the break point in the same event.   11. Change the Contract item again.   12. This time event is fired only once with proper oldValue and newValue.   Please refer the screen recording in the below URL.   [https://www.useloom.com/share/26ba4880bcd14399bd87720e0702f823]