select2: fix handling of aborted queries (#17161)

wcs/qommon/static/js/select2/select2.js

@@ -3469,7 +3469,7 @@ S2.define('select2/data/ajax',[
       }, function () {
         // Attempt to detect if a request was aborted
         // Only works if the transport exposes a status property
-        if ($request.status && $request.status === '0') {
+        if ($request.status === 0 || $request.status === '0') {
           return;
         }