please help me. I try to update value in components. 
example.
first time i open app work with components-a in page-1.continue work process i navigate to page-2.
after complete in page-2. It’s navigate to page-1 again.
I need to update value in components-a on page-1 ,but it’s ignor to me.
please help me. i can’t solve this problem by self.
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