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Created attachment 13477 [details]
Not all children pages pushed in a NavigationPage are collected once navigated away from.
**Steps to Reproduce:**
1. Run the attached sample on an Android simulator.
2. Press the Open button to navigate to page 2.
3. Note the count at the top of the screen.
4. Press the back button to go back to page 1.
5. Repeat steps 2-4.
The count being used to track page instances increases to 5 before a page is finalized. Then, it stays at 4 with repeated tests.
The count should not increase past 1.
**Build Date & Platform:**
Created attachment 20839 [details]
Correct repro project
The original repro project has a bug where the decrement of _liveCount doesn't get called in the finalizer (to see this, run it against the latest stable version of XF and notice that the Debug.WriteLine call in the finalizer writes to the debug console, but the value of the counter doesn't actually decrement).
I'm uploading a corrected repro project which uses the latest stable (18.104.22.168) and demonstrates that the counter never goes above 2 (one for the currently displayed page and one for the last page popped off of the navigation stack), which is the expected behavior.