jackson-module-jaxb-annotations: @XmlElements adds unwanted intermediate elements

I'm using Jackson to serialize Jakarta-XML annotated classes to XML.

One class has a List field annotated with **@XmlElements**. I expected that the object would be serialized into a parent element, and the contents of the list field would be direct children of that element. Instead, Jackson introduces an unwanted intermediary element, so that the contents of the list become grand children.

I have prepared a quick proof-of-concept in this repo: https://github.com/lgayard-brex/jaxb-xml-elements-issue . Also, see example below.

This is on Jackson 2.15.x, but also reproducible on later versions, 2.16.x, 2.17.x, 2.18.x.

Moreover, I see a difference between Glassfish and Jackson for this serialization. Glassfish serializes as per my expectations, while Jackson introduces this unwanted element.

```
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"andOrOrOrEqualto"
})
@XmlRootElement(name = "and")
public class And {

@XmlElements({
@XmlElement(name = "and", type = And.class),
@XmlElement(name = "or", type = Or.class),
@XmlElement(name = "equalto", type = Equalto.class),
@XmlElement(name = "notequalto", type = Notequalto.class)
})
protected List andOrOrOrEqualto;

```

Example.

Expected output
```xml

STATUS
inactive


NAME
Swag.com

```

Actual output
```xml

STATUS
inactive




NAME
Swag.com

```