Weird AFTER_ROLLBACK WARN on Spring data Redis use

I am using spring-data-redis to persist and retrieve a redis hash, and a weird WARN log entry keeps arising, whenever I do not wrapp execution in a transaction, via @Transactional annotation:

20-sept-2022 08:30:21.135 [http-nio-5335-exec-2] [trace=, span=, parent=, exportable=] WARN  o.s.t.e.TransactionalApplicationListenerMethodAdapter - Processing KeyValueEvent [keyspace=AuthToken, source=DDKAaXi4DdCq3XEDULemz8hCaxA] as a fallback execution on AFTER_ROLLBACK phase

Versions:

<dependencyManagement>
   <dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-dependencies</artifactId>
           <version>2.7.3</version>
           <type>pom</type>
           <scope>import</scope>
           </dependency>
       <dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
    </dependency>
</dependencies>    

Redis configuration:

@Configuration
@EnableRedisRepositories(basePackageClasses = {AuthTokenRedisRepository.class})
public class RedisConfiguration {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(final RedisConnectionFactory connectionFactory) {
        final RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);
        // I have tried both enabling and disabling transaction support.
        //template.setEnableTransactionSupport(false);
        return template;
    }

}

This is the repository and the entity (redis hash):

@Repository
public interface AuthTokenRedisRepository extends CrudRepository<AuthTokenRedisRepository.AuthTokenEntry, String> {

    List<AuthTokenEntry> findByUserId(@NotNull Integer userId);

    @Getter
    @Setter
    @RedisHash("AuthToken")
    class AuthTokenEntry implements Serializable {
        @Id
        private String authTokenId;
        @Indexed
        private Integer userId;
        private String username;
        private String userPublicId;
        private Set<String> authorities;
        @TimeToLive(unit = MILLISECONDS)
        private long timeToLiveMillis;
        private long creationDateEpochMillis;
        private long expiryDateEpochMillis;
    }

}

I would see it logic to start a transaction in a modifying use case, but the only method I am invoking in my scenario is a read one:

@Override
public Optional<AuthToken> retrieve(final AuthTokenId authTokenId) {
    return repository.findById(authTokenId.value()).map(this::toDomain);
}

More over, the mention to the transaction phase AFTER_ROLLBACK worries me, as it looks like some modification has been tried but not accomplished.

Any advice?