IGNITE-12641: Test fix. (#7386)

diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/datastructures/IgniteSequenceInternalCleanupTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/datastructures/IgniteSequenceInternalCleanupTest.java
index fceceff..b21f225 100644
--- a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/datastructures/IgniteSequenceInternalCleanupTest.java
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/datastructures/IgniteSequenceInternalCleanupTest.java
@@ -113,9 +113,11 @@
 
             ignite.cluster().active(true);
 
+            doSleep(500);
+
             long putsAfter = ignite.cache("test0").metrics().getCachePuts();
 
-            assertEquals(0, putsAfter);
+            assertEquals(1, putsAfter);
         }
         finally {
             stopAllGrids();