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diff --git a/web/modules/contrib/diff/tests/modules/diff_test/src/Plugin/diff/Field/TestLighterTextPlugin.php b/web/modules/contrib/diff/tests/modules/diff_test/src/Plugin/diff/Field/TestLighterTextPlugin.php
new file mode 100644
index 000000000..32fd267df
--- /dev/null
+++ b/web/modules/contrib/diff/tests/modules/diff_test/src/Plugin/diff/Field/TestLighterTextPlugin.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Drupal\diff_test\Plugin\diff\Field;
+
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\diff\FieldDiffBuilderBase;
+use Drupal\Core\Field\FieldItemListInterface;
+
+/**
+ * Test diff builder with light weight.
+ *
+ * @FieldDiffBuilder(
+ *   id = "test_lighter_text_plugin",
+ *   label = @Translation("Test Lighter Text Plugin"),
+ *   field_types = {
+ *     "text",
+ *   },
+ *   weight = -20,
+ * )
+ */
+class TestLighterTextPlugin extends FieldDiffBuilderBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function build(FieldItemListInterface $field_items) {
+    $result = [];
+
+    // Every item from $field_items is of type FieldItemInterface.
+    foreach ($field_items as $field_key => $field_item) {
+      if (!$field_item->isEmpty()) {
+        $values = $field_item->getValue();
+        if (isset($values['value'])) {
+          $result[$field_key][] = str_replace('applicable', 'lighter_test_plugin', $values['value']);
+        }
+      }
+    }
+    return $result;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function isApplicable(FieldStorageDefinitionInterface $field_definition) {
+    return ($field_definition->getName() == 'test_field_lighter');
+  }
+
+}