[hybrid][vaadin-grid 2+] Fix #63. No locale should be selected in listview on unsupported html.lang

Author: t2ym

live-localizer-list-view.html

@@ -357,6 +357,14 @@
               break;
             }
           }
+          if (i >= this.model.listItems.length) {
+            if (this.version1) {
+              this.$.list.selection.clear();
+            }
+            if (this.version2) {
+              this.$.list.selectedItems = [];
+            }
+          }
         }
         e.stopPropagation();
       },