Polishing.

See: #4722
Original pull request: #4723

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/aggregation/AggregationOperationRendererUnitTests.java

@@ -61,7 +61,7 @@ void nonFieldsExposingAggregationOperationContinuesWithSameContextForNextStage()
 		verify(stage2).toPipelineStages(eq(rootContext));
 	}
 
-	@Test
+	@Test // GH-4722
 	void contextShouldCarryOnRelaxedFieldMapping() {
 
 		MongoTestMappingContext ctx = new MongoTestMappingContext(cfg -> {