2.3.0 - CreateForm with single TextInput doesn't show any value after form submission

[zifnab87]

What you were expecting:
CreateForm with single TextInput should show stored valued after form submssion

What happened instead:
CreateForm with single TextInput doesn't show any value after form submission

Steps to reproduce:
Post -> Create -> add title -> Save

** Other Info: ***
I saw it fixed on sandbox with 2.0.0 but not locally

Related code:

• https://codesandbox.io/s/6w0v218loz
• React-admin version: 2.3.0 / 2.3.1
• Last version that did not exhibit the issue (if applicable): 2.0.0 ?

[fzaninotto]

Indeed, that's a serious regression. Looking into it.