TypeError: TypeError: t.username.toUpperCase is not a function. (In 't.username.toUpperCase()', 't.username....

Sentry Issue: MOBILE-B

TypeError: TypeError: t.username.toUpperCase is not a function. (In 't.username.toUpperCase()', 't.username.toUpperCase' is undefined)

This error is located at:
    in v
    in RCTView
    in s
    in RCTView
    in RCTScrollView
    in AndroidSwipeRefreshLayo...
    at src/messenger/conversation/ConversationView.value(ConversationView.js:48)
    <Text style={styles.body}>{item.username.toUpperCase()}</Text>
    at src/messenger/MessengerListStore.(MessengerListStore.js:150)
    this.offset = response.offset;
...
(33 additional frame(s) were not displayed)