Fixes translating id in Form tag

core/src/main/java/org/apache/struts2/components/Form.java

@@ -221,7 +221,7 @@ public class Form extends ClosingUIBean {
     @Override
     protected void populateComponentHtmlId(Form form) {
         if (id != null) {
-            addParameter("id", escape(id));
+            super.populateComponentHtmlId(null);
         }
 
         // if no id given, it will be tried to generate it from the action attribute

core/src/test/java/org/apache/struts2/views/jsp/ui/FormTagTest.java

@@ -186,6 +186,25 @@ public class FormTagTest extends AbstractUITagTest {
         verify(FormTag.class.getResource("Formtag-1.txt"));
     }
 
+    public void testFormId() throws Exception {
+
+        request.setupGetServletPath("/testAction");
+
+        TestAction testAction = (TestAction) action;
+        testAction.setFoo("bar");
+
+        FormTag tag = new FormTag();
+        tag.setPageContext(pageContext);
+        tag.setMethod("post");
+        tag.setAction("myAction");
+        tag.setId("myid-%{foo}");
+
+        tag.doStartTag();
+        tag.doEndTag();
+
+        verify(FormTag.class.getResource("Formtag-29.txt"));
+    }
+
      public void testFormNoNameOrId() throws Exception {
 
         request.setupGetServletPath("/testAction");

core/src/test/resources/org/apache/struts2/views/jsp/ui/Formtag-29.txt

@@ -0,0 +1,3 @@
+<form id="myid-bar" name="myid-bar" action="myAction" method="post">
+  <table class="wwFormTable"></table>
+</form>