RemovedInWagtail60Warning: UserPagePermissionsProxy.for_page() is deprecated

[Storm Heg]

The UserPagePermissionProxy class was deprecated in Wagtail 5.1 and will be removed in Wagtail 6: https://docs.wagtail.org/en/stable/releases/5.1.html#userpagepermissionsproxy-is-deprecated

It is used here:

wagtail-ab-testing/wagtail_ab_testing/views.py

Line 206 in d04bd00

 self.context['user_page_permissions'] = UserPagePermissionsProxy(self.request.user) 

We should consider backwards compatibility with older versions of Wagtail when fixing this.

[Dan Braghiș]

an example implementation: zerolab/wagtail-periodic-review@50b78a1