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Improve multi-pointer behavior (with ScrollView) on Android (software…
…-mansion#2551) ## Description This PR solves two problems: - `ScrollView` wrapped with `NativeViewGestureHandler` wasn't canceling the root view handler, which in turn meant that [`shouldIntercept` flag was never set](https://github.com/software-mansion/react-native-gesture-handler/blob/355a82fd3cf39b1bd4a57af958f040b563a1823e/android/src/main/java/com/swmansion/gesturehandler/react/RNGestureHandlerRootHelper.kt#L71) and event was [dispatched to both, the handler and the view](https://github.com/software-mansion/react-native-gesture-handler/blob/355a82fd3cf39b1bd4a57af958f040b563a1823e/android/src/main/java/com/swmansion/gesturehandler/react/RNGestureHandlerRootView.kt#L35-L37). - After a handler was activated and the root handler was canceled (setting `shouldIntercept` to true), and a new pointer was added to the screen, the root handler would begin and set `shouldIntercept` back to false. Again, this meant dispatching events both to the handler and the view. Fixes software-mansion#1679 ## Test plan Tested on the Example app and [reproduction from the issue](software-mansion#1679 (comment))
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