Empty YAML array does not override property from source with lower precedence
SpringBoot version - 1.5.10.RELEASE
I'm using Spring Centralized Configuration to store my application configuration and it works fine for single valued properties but for MultiValued properties remote config is not able to override local properties.

remote config file: test-cloud-config.yml

```yaml
test:
  empty:
    strKey: 
    listKey: []
```

SpringBoot resource local: application.yml

```yaml
test:
  empty:
    strKey: local str Key
    listKey: localOne, localTwo
```

My spring boot class:-

   

```java
@Component
public class TestRemoteConfig {
    
    @Value("${test.empty.strKey}")
    private String testEmptyStrKey;
    	
    @Value("${test.empty.listKey}")
    private String[] testEmptyListKey;
    	
    @PostConstruct
    public void init(){
        System.out.println("Test override EmptyStrKey's value :- "+ testEmptyStrKey);
        System.out.println("Test override EmptyListKey's value :- "+ Arrays.asList(testEmptyListKey));
    }

}
```

Output

```
Test override EmptyStrKey's value :- 
Test override EmptyListKey's value :- [localOne, localTwo]
```

but I expect 'testEmptyListKey' to be empty.

> Note: This works when I use .properties in place of .yml as config file