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Since having updated to XF 2.3.4-pre1 yesterday, I've had multiple hard crashes when triggering navigation from one page to the other (from different pages). All I'm seeing in the HockeyApp crash report are those NullReferenceExceptions:
android.runtime.JavaProxyThrowable: System.NullReferenceException: Object reference not set to an instance of an object
I can reliably reproduce this if I just navigate back and forth often enough - eventually, it crashes after the button tap that triggers the navigation to the child page. When running in debug mode, the debugger doesn't give me anything. The app just dies.
This has showstopper quality - I hope the issue already sounds familiar to you.
Just discovered this commit here:
That description looks spot-on :)
*** This bug has been marked as a duplicate of bug 51503 ***