Could you check (to be more certain about the "system level" side) if e.g. apps w/ long scrolling like the messaging app (when viewing a list of sms') also behaves like that (when you are in a situation where you can repro it) ?
Could you check (to be more certain about the "system level" side) if e.g. apps w/ long scrolling like the messaging app (when viewing a list of sms') also behaves like that (when you are in a situation where you can repro it) ?