.../field/src/Tests/EntityReference/EntityReferenceFormatterTest.php     | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/modules/field/src/Tests/EntityReference/EntityReferenceFormatterTest.php b/core/modules/field/src/Tests/EntityReference/EntityReferenceFormatterTest.php
index 1819915..4e8e4aa 100644
--- a/core/modules/field/src/Tests/EntityReference/EntityReferenceFormatterTest.php
+++ b/core/modules/field/src/Tests/EntityReference/EntityReferenceFormatterTest.php
@@ -242,6 +242,7 @@ public function testLabelFormatter() {
           'user.roles',
         ],
         'tags' => $this->unsavedReferencedEntity->getCacheTags(),
+        'max-age' => Cache::PERMANENT,
       ),
       '#attached' => [],
       '#post_render_cache' => [],