I'm unable to log in to the Wikipedia Android app with two-factor authentication (2FA). This bug was initially reported by [[ https://en.wikipedia.org/wiki/User:Michael_Greiner | Michael Greiner ]] on English Wikipedia at [[ https://en.wikipedia.org/wiki/Help_talk:Two-factor_authentication#2FA_entry_in_Android_app | Help talk:Two-factor authentication#2FA entry in Android app ]]. I can reproduce the bug on the latest version of the Android app (r/2.7.50282-r-2019-05-24) on my device (running Android 9) with my account.
Steps to Reproduce:
# From the login screen, enter your username and password.
# Tap "Log in".
# A toast notification appears, saying "Please enter a verification code from your authentication device". However, there is no input field to enter the verification code in.
Actual Results:
At this point, I've attempted to log in by entering the verification code after my password (e.g. //password123456//) or just the verification code itself (e.g. 123456), but both methods fail to log in with the message "Incorrect username or password entered. Please try again."
Expected Results:
At this point, the app should show a view that contains an input field for the verification code. I should be able to type in the code, submit it, and be logged in to the app.