fix language switching bug

src/components/Autocomplete.vue

@@ -132,9 +132,13 @@
       update_lang_form(lang) {
         this.$emit('update-lang-form', lang)
         // Submit if switching on front page
-        if (this.search && !this.items[0]) {
+         if (this.search && this.search!=this.$route.query.q && !this.items[0]) {
           this.submit({q: this.search, match: this.search, time: Date.now()})
         }
+        else {
+          this.$parent.reload_params()
+        }
+       
       },
       get_lang() {
         return this.$parent.lang