Issue #2917239 by Lendude, dww, iStryker: Form is built when not using fields

(cherry picked from commit 5888e036)

core/modules/views/src/ViewExecutable.php

@@ -2450,9 +2450,11 @@ public function buildThemeFunctions($hook) {
    *   FALSE otherwise.
    */
   public function hasFormElements() {
-    foreach ($this->field as $field) {
-      if (method_exists($field, 'viewsForm')) {
-        return TRUE;
+    if ($this->getDisplay()->usesFields()) {
+      foreach ($this->field as $field) {
+        if (method_exists($field, 'viewsForm')) {
+          return TRUE;
+        }
       }
     }
     $area_handlers = array_merge(array_values($this->header), array_values($this->footer));

core/modules/views/tests/modules/action_bulk_test/config/install/views.view.test_bulk_form.yml

@@ -178,3 +178,30 @@ display:
         empty: false
         style: false
       path: test_bulk_form_empty
+  page_3:
+    id: page_3
+    display_title: 'Page 3'
+    display_plugin: page
+    position: 3
+    display_options:
+      style:
+        type: grid
+        options:
+          grouping: { }
+          columns: 3
+          automatic_width: true
+          alignment: horizontal
+          row_class_custom: ''
+          row_class_default: true
+          col_class_custom: ''
+          col_class_default: true
+      row:
+        type: 'entity:node'
+        options:
+          relationship: none
+          view_mode: teaser
+      defaults:
+        style: false
+        row: false
+      display_extenders: { }
+      path: display-without-fields

core/modules/views/tests/src/Functional/Plugin/ViewsFormTest.php

@@ -34,6 +34,12 @@ public function testFormWrapper() {
     // Ensure we don't have nested form elements.
     $result = (bool) preg_match('#<form[^>]*?>(?!/form).*<form#s', $this->getSession()->getPage()->getContent());
     $this->assertFalse($result, 'The views form element is not nested.');
+
+    // Test the form isn't shown when the display doesn't use fields.
+    $this->drupalGet('display-without-fields');
+    // Ensure there's no form.
+    $xpath = $this->cssSelect('.views-form form');
+    $this->assertCount(0, $xpath);
   }
 
 }