ArrayInput with SelectInput error message not styled.

[agmcleod]

Very similar to this one here: #2270, just using SelectInput instead of SelectArrayInput. I upgraded from 2.1.x to 2.4.1

What you were expecting:
For the error message to be in red and look similar to other fields. Instead it is black and looks unstyled. The banner field is correct, the name is not.

Related code:

const isRequired = required();
const supportedLocales = [{id:'en-CA', name:'en-CA'}, {id:'fr-CA', name:'fr-CA'}];

<ArrayInput source='name' validate={isRequired}>
  <SimpleFormIterator>
    <SelectInput source='locale' choices={supportedLocales} />
    <TextInput source='text' />
  </SimpleFormIterator>
</ArrayInput>

We then transform it from an object of keys into an array

Environment

• React-admin version: 2.4.1
• React version: 16.4.1
• Browser: Firefox, Chrome