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I pushed a very simple TabbedPage on my navigation stack. When the page is closed, the app crashes with
[ERROR] FATAL UNHANDLED EXCEPTION: System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'TabbedPageRenderer'.
at (wrapper managed-to-native) AppKit.NSApplication:NSApplicationMain (int,string)
at AppKit.NSApplication.Main (System.String args) [0x00041] in /Users/builder/data/lanes/5143/124197ee/source/xamarin-macios/src/AppKit/NSApplication.cs:100
at XFMacRepro.Mac.MainClass.Main (System.String args) [0x00017] in /Users/Michael/Projects/XFMacRepro/XFMacRepro.Mac/Main.cs:11
I tested this in XF 188.8.131.5271-pre2.
The repro project from bug 60510 also demonstrates this issue. https://bugzilla.xamarin.com/attachment.cgi?id=25552