NumericInput regression prevents typing decimal places

[adidahiya]

Environment

• Package version(s): core 3.30.0

Code Sandbox

Link to a minimal repro (fork this code sandbox): https://codesandbox.io/s/nice-bartik-3ku3b?file=/src/App.js

Steps to reproduce

1. Type . at the end of input

Actual behavior

Nothing, keystroke is not registered

Expected behavior

Keystroke is registered and 0. is shown in the input

Possible solution

This regression was caused by #4211, so we need to look there for solutions

[adidahiya]

Actually, nevermind -- this is an intended change with the fixes made to controlled usage of NumericInput in #4211. The new behavior is correct, but consumers may have been relying on buggy behavior of the component before that change. The recommendation is that controlled usage should always use the second parameter of onChange, taking the value as a string, rather than as a parsed number.