[Cache] fix data collector

Author: dcmbrs

src/Symfony/Component/Cache/DataCollector/CacheDataCollector.php

@@ -60,6 +60,7 @@ public function lateCollect(): void
 
         $this->data['instances']['statistics'] = $this->calculateStatistics();
         $this->data['total']['statistics'] = $this->calculateTotalStatistics();
+        $this->data['instances']['calls'] = $this->cloneVar($this->data['instances']['calls']);
     }
 
     public function getName(): string

src/Symfony/Component/Cache/Tests/DataCollector/CacheDataCollectorTest.php

@@ -17,6 +17,7 @@
 use Symfony\Component\Cache\DataCollector\CacheDataCollector;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\VarDumper\Cloner\Data;
 
 class CacheDataCollectorTest extends TestCase
 {
@@ -122,6 +123,7 @@ public function testLateCollect()
         $this->assertEquals($stats[self::INSTANCE_NAME]['hits'], 0, 'hits');
         $this->assertEquals($stats[self::INSTANCE_NAME]['misses'], 1, 'misses');
         $this->assertEquals($stats[self::INSTANCE_NAME]['calls'], 1, 'calls');
+        $this->assertInstanceOf(Data::class, $collector->getCalls());
     }
 
     private function getCacheDataCollectorStatisticsFromEvents(array $traceableAdapterEvents)