Jackson XML reading mixed sibling nodes "overwriting" issue

Jackson seems to be overwriting the older sibling nodes if the order is mixed. See below test case. Seems to be a bug. Thanks.

@JacksonXmlRootElement
data class RootNode(
@JacksonXmlElementWrapper(useWrapping = false)
@JacksonXmlProperty(localName = "NodeA")
val nodeA: List,
@JacksonXmlProperty(localName = "NodeB")
val nodeB: NodeB
)

data class NodeA(
@JacksonXmlProperty(localName = "attr", isAttribute = true)
val attr: String
)

data class NodeB(
@JacksonXmlProperty(localName = "attr", isAttribute = true)
val attr: String
)

class ReadXMLTest {
@Test
fun canRead() {
val xml = """





""".trimIndent()

val xmlMapper = XmlMapper()
xmlMapper.registerModule(kotlinModule())

assertEquals(
RootNode(
listOf(NodeA("123"), NodeA("456")),
NodeB("ABC")
),
xmlMapper.readValue(xml)
)
}
}

This fails with

Expected :RootNode(nodeA=[NodeA(attr=123), NodeA(attr=456)], nodeB=NodeB(attr=ABC))
Actual :RootNode(nodeA=[NodeA(attr=456)], nodeB=NodeB(attr=ABC))

If the XML is like below, then it passes.