Minor fix to autocompletion dialog

src/selectiondialog.cc

@@ -380,6 +380,8 @@ bool CompletionDialog::on_key_press(GdkEventKey* key) {
         cursor_changed();
       }
     }
+    else
+      list_view_text.set_cursor(list_view_text.get_model()->get_path(list_view_text.get_model()->children().begin()));
     select(false);
     return true;
   }
@@ -392,6 +394,12 @@ bool CompletionDialog::on_key_press(GdkEventKey* key) {
         cursor_changed();
       }
     }
+    else {
+      auto last_it=list_view_text.get_model()->children().end();
+      last_it--;
+      if(last_it)
+        list_view_text.set_cursor(list_view_text.get_model()->get_path(last_it));
+    }
     select(false);
     return true;
   }