Bug: unwrap title before setting to value

Change title from None to "": this ensure that on
a transition Some(x) -> None the value displayed
in the input is changed correctly.

Author: Cedric Airaud

packages/yew-bootstrap/src/component/searchable_select/mod.rs

@@ -407,7 +407,7 @@ pub fn SearchableSelect(props: &SearchableSelectProps) -> Html {
                     id={ props.id.clone() }
                     type="text"
                     class={ classes!("form-control", validation_class) }
-                    value={props.title.clone()}
+                    value={ props.title.clone().unwrap_or("".into()) }
                     placeholder={props.placeholder.clone()}
                     readonly={true}
                 />