ReferenceInput doesn't work correctly

SelectInput component doesn’t display choices (SelectInput always disabled):

<ReferenceInput source="productId" reference="products">
    <SelectInput optionText="name" />
</ReferenceInput>

When adding attributes “allowEmpty” and “validation={{ required: true }}” component renders fine:

<ReferenceInput source="productId" reference="products" allowEmpty validation={{ required: true }}>
    <SelectInput optionText="name" />
</ReferenceInput>

version 0.9.1

[fzaninotto]

Are you in a <Create> view? If so, it’s expected, as explained in the doc:

Tip: The <Edit> and the <Create> components use the same <ReferenceInput> configuration, except for the allowEmpty attribute, which is required in <Create>.

[petitchevalroux]

Ok, by digging more I think my problem is that isRequired != Empty

I just created a component working as I expect in create mode : https://gist.github.com/petitchevalroux/e39bb59d8e8416037f3b96e35a144b22

It allows to choose an item in SelectInput but didn’t allow the form to be submitted with the empty item.