Toggling Multiple/Search/etc. Breaks Dropdown

[dvdzkwsk]

Bug Report

If a Dropdown transitions between different modes (i.e. single -> multiple, no search -> search) it breaks. You can workaround the issue by first unmounting it and then rendering it anew with the desired props, but that's brittle and surprising. It looks like the issue has to do with how auto controlled state is managed.

Steps

1. Render a dropdown with multiple=false
2. Re-render the same dropdown multiple=true
3. Observe the runtime error.

Expected Result

Dropdown should have switched modes, i.e. from single to multiple selection.

Actual Result

Dropdown threw a fatal runtime error.

Version

0.34.1

Testcase

https://codesandbox.io/s/lucid-wozniak-ngzyc