How to create swagger documentation to list of object with Kotlin - springdoc

Question

I'm trying to use springdoc to generate the documentation and would like to know how can I make a nested list of object to appear in the documentation.
I created an github example to reproduce the problem:
https://github.com/marciovmartins/springdoc-nested-list-object
Here is my spring boot application, repository and entities
package example.springdoc
import com.fasterxml.jackson.annotation.JsonIgnore
import java.time.LocalDate
import java.util.UUID
import javax.persistence.CascadeType
import javax.persistence.Column
import javax.persistence.Entity
import javax.persistence.GeneratedValue
import javax.persistence.GenerationType
import javax.persistence.Id
import javax.persistence.JoinColumn
import javax.persistence.OneToMany
import javax.validation.Valid
import javax.validation.constraints.NotEmpty
import javax.validation.constraints.NotNull
import javax.validation.constraints.PastOrPresent
import org.hibernate.annotations.Type
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
import org.springframework.data.repository.CrudRepository
#SpringBootApplication
class SpringDocApplication
fun main(args: Array<String>) {
runApplication<SpringDocApplication>(*args)
}
#Suppress("unused")
interface GameDayRepository : CrudRepository<GameDay, UUID>
#Suppress("unused")
#Entity(name = "gameDays")
class GameDay(
#Id
#Suppress("unused")
#Type(type = "uuid-char")
#Column(length = 36, unique = true, nullable = false)
var id: UUID? = null,
#field:NotNull
#field:PastOrPresent
var date: LocalDate,
#field:Valid
#field:NotEmpty
#JoinColumn(name = "game_day_id", nullable = false)
#OneToMany(cascade = [CascadeType.ALL], orphanRemoval = true)
var matches: Set<Match>,
)
#Suppress("unused")
#Entity(name = "matches")
class Match(
#Id
#JsonIgnore
#GeneratedValue(strategy = GenerationType.IDENTITY)
var id: Long? = null,
var goalsTeamA: Long,
var goalsTeamB: Long,
)
Here is the pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>SpringDoc</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>SpringDoc</name>
<description>SpringDoc</description>
<properties>
<java.version>17</java.version>
<kotlin.version>1.6.10</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId>
<version>1.6.6</version>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-data-rest</artifactId>
<version>1.6.6</version>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-kotlin</artifactId>
<version>1.6.6</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<configuration>
<args>
<arg>-Xjsr305=strict</arg>
</args>
<compilerPlugins>
<plugin>spring</plugin>
<plugin>jpa</plugin>
</compilerPlugins>
</configuration>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-noarg</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
And here is the screenshot of the running documentation: