This is a (minor?) bug I accidentally discovered while trying to debug App misidentifies Unity Answers links as StackExchange Qs, resulting in "Loading the Question Failed": if you tap a link to a post on Meta MathOverflow from mobile browser, Android doesn't show app chooser (the "Open with" pop-up) and instead just open the post in the browser.

Example (remember to open this from mobile browser, not from SE Android app! For Android app user: click "More" on this question, and select "Open in browser" first):

• Happy 5th anniversary, MathOverflow! on Meta MathOverflow
• Examples of common false beliefs in mathematics on MathOverflow main site

The problem lies on a typo on the manifest file: there are duplicate entries for <data android:host="mathoverflow.net" />, but missing <data android:host="meta.mathoverflow.net" />

This bug also made tapping the "Read this post in our app!" link on the top failed, redirecting to Play Store (even though the app is already installed) instead of opening the post directly on the app.

Spec: Nexus 5 on Lollipop 5.1.1, SE app v1.0.68

^{Off-topic: do we also need the link handling of Answers.OnStartups.com?}