Fix add to subcorpus btns not showing when results per page are updated

web/app/static/js/nopaque.lists.js

@@ -532,6 +532,7 @@ class ResultsList extends List {
       this.page = event.target.value;
       this.update();
       this.activateInspect();
+      this.activateAddToSubResults();
       if (expertModeSwitchElement.checked) {
         this.expertModeOn("query-display");  // page holds new result rows, so add new tooltips
       }