Fix return empty result when search growing segments (#12912)

Signed-off-by: Nxige-16 <xi.ge@zilliz.com>

internal/querynode/collection_replica.go

@@ -387,9 +387,11 @@ func (colReplica *collectionReplica) addPartitionPrivate(collectionID UniqueID,
 		return err
 	}
 
-	collection.addPartitionID(partitionID)
-	var newPartition = newPartition(collectionID, partitionID)
-	colReplica.partitions[partitionID] = newPartition
+	if !colReplica.hasPartitionPrivate(partitionID) {
+		collection.addPartitionID(partitionID)
+		var newPartition = newPartition(collectionID, partitionID)
+		colReplica.partitions[partitionID] = newPartition
+	}
 	return nil
 }