Notifications: Can't open new post notification about password-protected posts

Expected behavior

If I am subscribed to get web/app notifications about new posts on a site, and the site publishes a password-protected post, I expect to get a notification in the app similar to what I get on the web:

That notification includes a link to the post on the site so I can view it directly.

Actual behavior

In the app, I get the same notification in my notifications list, but the notification detail doesn't open. Instead, it shows this error:

You're not authorised to view this post

List	Detail

As a result, I can't get a link to the post or view it from that notification.

Steps to reproduce the behavior

1. Follow a site.
2. Enable new post notifications for that site. (In the app, go to Notifications tab > Settings icon > Select the site under Followed Sites > Toggle on "New posts" to enable new post notifications.)
3. Publish a password-protect post on that site.
4. Check your notifications and confirm you see a notification for the new post.
5. Tap the notification to try to view it.

Tested on [moto e5 play], Android [8.1.0], WPAndroid [alpha-213]

Related iOS issue: https://github.com/wordpress-mobile/WordPress-iOS/issues/13718

Reproduce the issue by following the listed notification steps on WordPress for Android, then trace how a new-post notification opens its detail view. Done means tapping a password-protected post notification opens the post or provides its link instead of showing the authorization error; verify the existing notification behavior remains intact.