Message bubbles rendering glitches

[HmVg]

Occasionally, the latest message will appear truncated after a notification is received and the app is opened. Hard closing the app (double tap home, swipe up) and re-opening loads the message properly. I have seen the issue since the beginning of text support in Signal. It rarely happens on my device (iPhone 6, iOS 8.3-8.4), but frequently happens on another recipient's device with the same specs.

I have no idea how to reliably reproduce this bug, and it may be related to #421 .

Example would be that I send: "Hello, how are you today"
Recipient would get the noti and see something like: "Hello, how"
Force closing and re-opening Signal shows the whole message