[fixed] missing key on Multiselect

Author: jquense

src/Multiselect.jsx

@@ -14,7 +14,7 @@ import { widgetEditable, widgetEnabled } from './util/interaction';
 import { instanceId, notify, isFirstFocusedRender } from './util/widgetHelpers';
 
 var compatCreate = (props, msgs) => typeof msgs.createNew === 'function'
-  ? msgs.createNew(props) : [<strong>{`"${props.searchTerm}"`}</strong>, ' ' + msgs.createNew]
+  ? msgs.createNew(props) : [<strong key='dumb'>{`"${props.searchTerm}"`}</strong>, ' ' + msgs.createNew]
 
 let { omit, pick, splat } = _;