typing non-ascii (korean) in search box (databrowser) is buggy

**Describe the bug**

when I type `한글` it is typed something like as `ㅎㅏㄴㄱ-ㄹ`

**Dejavu Version**
Your version of Dejavu and how you're running it: Web, Chrome Extension or as a Docker Image.
3.4.3
running locally

**To Reproduce**
Steps to reproduce the behavior:
databrowser

type non ascii character

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**

**Desktop (please complete the following information):**
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Additional context**

I tried to track down where the bug is,

thought `downshift` might be the cause but it doesn't seem to

(I could type `한글` correctly in their sample sandbox https://codesandbox.io/s/simple-downshift-with-getrootprops-example-24s13)