=== Steps to reproduce
# Get Wikipedia App from Google Play
# Open it
# Set language to English
# Search any existing title on enwiki which is not in the main namespace, "Wikipedia:Verifiability" for example.
# Enter the page and scroll to bottom
# Locate "View talk page"
# Tap "View talk page" and choose an web explorer to open it
=== Expected results
Get https://en.wikipedia.org/wiki/**Wikipedia_talk:**Verifiability opened.
=== Actual results
Get https://en.wikipedia.org/wiki/**Talk:Wikipedia:**Verifiability opened.
=== Environments observed
**App version: ** 2.7.50333-r-2020-10-06 and 2.7.50333-beta-2020-10-06
**Android OS versions:** 10
**Device model:** Oneplus 7T
**Device language:** English
=== To say more
This is not a bug brought by the latest update or updates in recent months. It has been there for at least a year, I should say. The problem is not complicated, simply because it adds "Talk:" before titles in all the namespaces to generate their links to talk pages.