Cursor moves to the end when editing the date/time value.

### I'm Submitting a ...

```
[ x] Bug report
[ ] Feature request
[ ] Support request
```

### Steps to Reproduce
An example source code - https://codesandbox.io/s/react-datetime-bug-1r8ihy?file=/src/App.js

### Expected Results

The cursor stays in place when editing.

### Actual Results

The cursor moves to the end.

### Minimal Reproduction of the Problem
The steps to reproduce is shown in the attached video. In the video notice how the cursor moves to the end of the text field once editing starts. This happens when the "value" and "timeFormat" props are provided.

https://user-images.githubusercontent.com/1680655/174718300-1fced961-baed-4625-b38d-0510aef8b615.mov