IGNITE-24362 Fix CacheExchangeMessageDuplicatedStateTest - Fixes #11842.

Signed-off-by: Aleksey Plekhanov <plehanov.alex@gmail.com>

Author: Maksim Davydov

modules/core/src/test/java/org/apache/ignite/internal/processors/cache/CacheExchangeMessageDuplicatedStateTest.java

@@ -230,7 +230,7 @@ private void checkFullMessage(GridDhtPartitionsFullMessage msg) {
         assertFalse(dupPartsData.containsKey(CU.cacheId(AFF3_CACHE1)));
 
         Map<Integer, CachePartitionFullCountersMap> partCntrs =
-            getFieldValue(getFieldValue(msg, "partCntrs2"), "map");
+            getFieldValue(getFieldValue(msg, "partCntrs"), "map");
 
         if (partCntrs != null) {
             for (CachePartitionFullCountersMap cntrs : partCntrs.values()) {