Fixes issue when setting NavigationPage.SetHasBackButton after page has navigated (Android/AppCompat)

[stefandevo]

Description of Change

When a page was already navigated, and you used NavigationPage.SetHasBackButton(this, false) to switch of the Back Button in Android AppCompat, the toolbar was not updated.

Bugs Fixed

https://bugzilla.xamarin.com/show_bug.cgi?id=42557

API Changes

None

Behavioral Changes

PR Checklist

• Has tests (if omitted, state reason in description)
• Rebased on top of master at time of PR
• Changes adhere to coding standard
• Consolidate commits as makes sense

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[rmarinho]

👍

[stefandevo]

Any idea when this will be in a "public" release?
At the moment I am using a dirty fix by adding a " " to the title (which forces the same method)

[jassmith]

👍