search form micro fixe (comma alone)

web/themes/custom/materiotheme/vuejs/components/Form/SearchForm.vue

@@ -146,7 +146,7 @@ export default {
     },
     keys(n, o){
       console.log('watch keys changed', o, n)
-      this.typed = n ? n.join(', ') + ', ' : ''
+      this.typed = n.length ? n.join(', ') + ', ' : ''
     },
     // terms(n, o){
     //   // if term change from store