TabStrip tabs content state is lost when dynamically adding and removing tabs.

[simonssspirit]

TabStrip tabs content state is lost when dynamically adding and removing tabs.

This occurs as the tabs keys are set based on their index, but when we dynamically, the index of a tab can change.

We can use another 'unique' identifier for the keys.

More details and a runnable example can be found in ticket 1469381

[kdikov82]

Reported again in Ticket ID: 1553920

[kdikov82]

Reported again

[trinhvinhtruong96]

This bad behavior still happened due to TabStripNavigationItem uses index as key