Keyboard navigation key handlers exception in RTL

[msjabarr]

Bug Report

In RTL, text input (Input, TextArea) crashes with uncaught exception:

TypeError
keyCombinations.map is not a function

This causes bad rendering behavior.

Steps

A clear and concise description of steps to reproduce the problem.
Use this example:
https://codesandbox.io/s/stardust-ui-example-p3n6j

See that text input both in RTL and LTR work normally.

Download Chrome V69
https://www.slimjet.com/chrome/google-chrome-old-version.php

See that when RTL is false, text input works normally. Then set it to true. See that any text input now causes an uncaught exception to be thrown.

Expected Result

Text input to work normally.

Actual Result

Uncaught exception causes crash.

Version

Chrome: Version 69.0.3497.92 (Official Build) (64-bit)
Stardust: Stardust UI @ 0.40.1

Testcase

N/A

[miroslavstastny]

getKeyDownHandlers expects keyCombinations to be an array:

But it can also be false:

That leads to an uncaught error: