Issue #2667224 by rlhawk: Adding or editing "Change the author of content" action causes error

core/modules/node/src/Plugin/Action/AssignOwnerNode.php

@@ -117,7 +117,7 @@ public function buildConfigurationForm(array $form, FormStateInterface $form_sta
    * {@inheritdoc}
    */
   public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
-    $exists = (bool) $this->connection->queryRange('SELECT 1 FROM {users_field_data} WHERE uid = :uid AND default_langcode = 1', 0, 1, array(':name' => $form_state->getValue('owner_uid')))->fetchField();
+    $exists = (bool) $this->connection->queryRange('SELECT 1 FROM {users_field_data} WHERE uid = :uid AND default_langcode = 1', 0, 1, array(':uid' => $form_state->getValue('owner_uid')))->fetchField();
     if (!$exists) {
       $form_state->setErrorByName('owner_uid', t('Enter a valid username.'));
     }

core/modules/node/src/Tests/NodeActionsConfigurationTest.php

+<?php
+
+namespace Drupal\node\Tests;
+
+use Drupal\Component\Utility\Crypt;
+use Drupal\simpletest\WebTestBase;
+use Drupal\system\Entity\Action;
+
+/**
+ * Tests configuration of actions provided by the Node module.
+ *
+ * @group node
+ */
+class NodeActionsConfigurationTest extends WebTestBase {
+
+  /**
+   * Modules to install.
+   *
+   * @var array
+   */
+  public static $modules = ['action', 'node'];
+
+  /**
+   * Tests configuration of the node_assign_owner_action action.
+   */
+  public function testAssignOwnerNodeActionConfiguration() {
+    // Create a user with permission to view the actions administration pages.
+    $user = $this->drupalCreateUser(['administer actions']);
+    $this->drupalLogin($user);
+
+    // Make a POST request to admin/config/system/actions.
+    $edit = [];
+    $edit['action'] = Crypt::hashBase64('node_assign_owner_action');
+    $this->drupalPostForm('admin/config/system/actions', $edit, t('Create'));
+    $this->assertResponse(200);
+
+    // Make a POST request to the individual action configuration page.
+    $edit = [];
+    $action_label = $this->randomMachineName();
+    $edit['label'] = $action_label;
+    $edit['id'] = strtolower($action_label);
+    $edit['owner_uid'] = $user->id();
+    $this->drupalPostForm('admin/config/system/actions/add/' . Crypt::hashBase64('node_assign_owner_action'), $edit, t('Save'));
+    $this->assertResponse(200);
+
+    // Make sure that the new action was saved properly.
+    $this->assertText(t('The action has been successfully saved.'), 'The node_assign_owner_action action has been successfully saved.');
+    $this->assertText($action_label, 'The label of the node_assign_owner_action action appears on the actions administration page after saving.');
+
+    // Make another POST request to the action edit page.
+    $this->clickLink(t('Configure'));
+    preg_match('|admin/config/system/actions/configure/(.+)|', $this->getUrl(), $matches);
+    $aid = $matches[1];
+    $edit = [];
+    $new_action_label = $this->randomMachineName();
+    $edit['label'] = $new_action_label;
+    $edit['owner_uid'] = $user->id();
+    $this->drupalPostForm(NULL, $edit, t('Save'));
+    $this->assertResponse(200);
+
+    // Make sure that the action updated properly.
+    $this->assertText(t('The action has been successfully saved.'), 'The node_assign_owner_action action has been successfully updated.');
+    $this->assertNoText($action_label, 'The old label for the node_assign_owner_action action does not appear on the actions administration page after updating.');
+    $this->assertText($new_action_label, 'The new label for the node_assign_owner_action action appears on the actions administration page after updating.');
+
+    // Make sure that deletions work properly.
+    $this->drupalGet('admin/config/system/actions');
+    $this->clickLink(t('Delete'));
+    $this->assertResponse(200);
+    $edit = [];
+    $this->drupalPostForm("admin/config/system/actions/configure/$aid/delete", $edit, t('Delete'));
+    $this->assertResponse(200);
+
+    // Make sure that the action was actually deleted.
+    $this->assertRaw(t('The action %action has been deleted.', ['%action' => $new_action_label]), 'The delete confirmation message appears after deleting the node_assign_owner_action action.');
+    $this->drupalGet('admin/config/system/actions');
+    $this->assertResponse(200);
+    $this->assertNoText($new_action_label, 'The label for the node_assign_owner_action action does not appear on the actions administration page after deleting.');
+
+    $action = Action::load($aid);
+    $this->assertFalse($action, 'The node_assign_owner_action action is not available after being deleted.');
+  }
+
+}