Use stateName as the source of truth for StackRouterNavigator state e… #1
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…quality
Description:
Currently, StackRouterNavigator compares states inconsistently. In the "pushState" method, it compares states via "state.stateName() == newState.stateName()". Elsewhere, it compares states using "state == newState". This leads to surprising behavior in the library.
For example, if you push state with name "A", then push another state "A" with Flag.DEFAULT, the second push will no-op even if the two states aren't otherwise equal. But if you push a state with name "A", then push another state with Flag.CLEAR_TOP, clearTop won't clear the stack since a different equality check is used vs Flag.DEFAULT.
This makes the library always use the state name as the source of truth for state equality, which seems like a more expected behavior.
Related issue(s): RF-8841