XFA - Bind items when there's a bindItems entry

- In the pdf in issue #14071, some select fields don't contain any values;
  - the corresponding node has a bindItems and a bind elements and _bindItems function was just not called.

test/unit/xfa_parser_spec.js

@@ -1259,6 +1259,57 @@ describe("XFAParser", function () {
       ]);
     });
 
+    it("should make binding and bind items with a ref", function () {
+      const xml = `
+<?xml version="1.0"?>
+<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
+  <template xmlns="http://www.xfa.org/schema/xfa-template/3.3">
+    <subform name="main">
+      <field name="CardName">
+        <bind match="dataRef" ref="$data.main.value"/>
+        <bindItems ref="$data.main.ccs.cc[*]" labelRef="uiname" valueRef="token"/>
+        <ui>
+          <choiceList/>
+        </ui>
+      </field>
+    </subform>
+  </template>
+  <xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
+    <xfa:data>
+      <main>
+        <value>VISA</value>
+        <ccs>
+          <cc uiname="Visa" token="VISA"/>
+          <cc uiname="Mastercard" token="MC"/>
+          <cc uiname="American Express" token="AMEX"/>
+        </ccs>
+        <CardName>MC</CardName>
+      </main>
+    </xfa:data>
+  </xfa:datasets>
+</xdp:xdp>
+      `;
+      const root = new XFAParser().parse(xml);
+      const form = new Binder(root).bind();
+      expect(
+        searchNode(form, form, "subform.CardName.value.text").map(x =>
+          x[$text]()
+        )
+      ).toEqual(["VISA"]);
+      expect(
+        searchNode(form, form, "subform.CardName.items[*].text[*]").map(x =>
+          x[$text]()
+        )
+      ).toEqual([
+        "Visa",
+        "Mastercard",
+        "American Express",
+        "VISA",
+        "MC",
+        "AMEX",
+      ]);
+    });
+
     it("should make binding with occurrences in consumeData mode", function () {
       const xml = `
 <?xml version="1.0"?>