Steps to reproduce

1. Open user page (e.g. User:<username>)
2. Click on View Talk Page
3. Select either Browser or Wikipedia app

Expected results

View Talk Page for that user

Actual results

A message "An error occurred" is shown on the app, or "bad title" on the website.

Possible reason

The app tries to redirect to Talk:<username> rather than User_Talk:<username>; so I think that no check is done on the current namespace.

Environments observed

App version: 2.7.50324-r-2020-06-29
Android OS versions: 10
Device model: Mi 9T
Device language: English