onchange tabs, go back to previous tab with screen state maintained

### Expected behaviour
I have **'a' screen on A tab**, did some changes , then i moved to **B tab**. When i come to A tab, I see 'a' screen, I want to see the **changed screen of A**.

### Actual behaviour
On coming back from Tab B to A, the a's screen gets refreshed automatically, and **the changes done on 'a', is not shown.**

I used ,
Actions.A();
on going back.