.../text/tests/src/Kernel/Normalizer/TextItemBaseNormalizerTest.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/modules/text/tests/src/Kernel/Normalizer/TextItemBaseNormalizerTest.php b/core/modules/text/tests/src/Kernel/Normalizer/TextItemBaseNormalizerTest.php
index 98b81d9..426f878 100644
--- a/core/modules/text/tests/src/Kernel/Normalizer/TextItemBaseNormalizerTest.php
+++ b/core/modules/text/tests/src/Kernel/Normalizer/TextItemBaseNormalizerTest.php
@@ -76,9 +76,10 @@ protected function setUp() {
    * @dataProvider testNormalizeProvider
    */
   public function testNormalize($text_item, array $expected, $filter_config_update = [], $updated_processed = '', $tags = []) {
-    $entity = EntityTest::create(['field_text' => $text_item]);
-    $entity->save();
+    $original_entity = EntityTest::create(['field_text' => $text_item]);
+    $original_entity->save();
 
+    $entity = clone $original_entity;
     $context = new RenderContext();
     $data = $this->container->get('renderer')
       ->executeInRenderContext($context, function () use ($entity) {
@@ -100,6 +101,7 @@ public function testNormalize($text_item, array $expected, $filter_config_update
       }
       $filter_format->save();
 
+      $entity = clone $original_entity;
       $context = new RenderContext();
 
       $data = $this->container->get('renderer')