[v3] ReferenceArrayInput don't work properly with AutocompleteArrayInput

[ViktorShapoval]

What you were expecting:
Components to work properly

What happened instead:
When using components like this

<ReferenceArrayInput>
  <AutocompleteArrayInput/>
<ReferenceArrayInput/>

if you have already some values there from your api and try to add new values, old values names will dissapear

1. 
2. 
3. 

Steps to reproduce:
I was able to reproduce this issue in the react-admin demo with just a few additional lines of code to show a new tab and add the required data to data-generator.
Here is my version for it.

1. git clone https://github.com/theVeid/react-admin.git
2. cd react-admin
3. git checkout issue-reference-array-input
4. make install
5. make build
6. make run-demo
7. Go to http://localhost:3000/#/customers/690/commands
8. Try to add new value from the dropdown
9. You see the bug

Related code:
https://github.com/theVeid/react-admin.git at issue-reference-array-input branch
Only changes I've made

// react-admin/examples/demo/src/visitors/VisitorEdit.js
<FormTab label={'Commands'} path={'commands'}>
    <ReferenceArrayInput
        source={'commands_ids'}
        reference={'commands'}
    >
        <AutocompleteArrayInput optionText={'reference'} />
    </ReferenceArrayInput>
</FormTab>

// react-admin/examples/data-generator/src/customers
return {
  id,
  first_name,
  ...,
 commands_ids: [376, 84, 506], // new line
}

Environment

• React-admin version: 3.0.0
• Last version that did not exhibit the issue (if applicable): 2.9.9
• React version: 16.9.0
• Browser: Chrome 78
• Stack trace (in case of a JS error):

[fzaninotto]

I can't reproduce the problem with the code you've provided on 3.0 in the simple example and demo example. There must be an error somewhere else in your code. Can you try and publish a CodeSandbox demonstrating the issue?

[ViktorShapoval]

@fzaninotto This bug is also occurring in codesandbox simple demo https://codesandbox.io/s/github/marmelab/react-admin/tree/master/examples/simple, here is the gif.

Thanks for looking into it. This is the bug that is mostly preventing me from an upgrade to v3.

[fzaninotto]

oh, now I get it, you need to type characters to trigger the bug. Thanks for the GIF and the bug report, we'll look into it.