Trying to search for an issue results in blank white screen

[wrongsyntax]

Question	Response
Version?	v1.6.0
Devices tested?	iPhone 6

---

What Currently Happens?

Searching for an issue on any repository causes the app to show only a white screen, with no buttons or anything.

What Do You Expect To Happen?

I expected issues that relate to the search to appear, and the rest of the app to function normally.

My Reproduction Steps

1. Go to any repo
2. Tap View all on the issues
3. Search for anything
4. See results

[chinesedfan]

Refer to #751 (comment). It should be fixed by #856. And if everything goes well, there will be a new release next week.