Shell transitions not received when activity already open on another display

- Add condition to not abort the transition when the task has some change which is yet to be applied.
- Example - Display change in this case such as an activity that is already open on display 1 (distant display) and the activity is opened on display 2 (default display)

Flag: NONE (bugfix)
Bug: 349196013
Test: m
Test: Open Youtube when it is already open on the distant display and verify if the shell transitions are received or not.

Change-Id: Ib4949721eb77fb96eaa19e210f97b44163d4e4a5