Set AutocompleteInput value to an empty string when it's selected item is null

[WiXSL]

Most AutocompleteInput tests threw console errors regarding initial state.

VM74:37 Warning: A component is changing a controlled input of type text to be uncontrolled. Input elements should not switch from controlled to uncontrolled (or vice versa). Decide between using a controlled or uncontrolled input element for the lifetime of the component. 

VM74:37 downshift: A component has changed the controlled prop "inputValue" to be - uncontrolled. This prop should not switch from controlled to uncontrolled (or vice versa). Decide - between using a controlled or uncontrolled Downshift element for the lifetime of the component. - More info: https://github.com/downshift-js/downshift#control-props 
     in Downshift (created by AutocompleteInput)
     in AutocompleteInput (at horascuentascorrientes.js:90)
    in HorasCCCreate (created by WithPermissions)
     in WithPermissions (created by Router.Consumer)
     in Router.Consumer (created by Route)
     in Route (created by ResourceRoutes)
     in ResourceRoutes (created by Resource)
     in Resource (at App.js:52)
     in App (at src/​index.js:20)

[djhi]

👍

[fzaninotto]

Thanks!