Durable subscriber results in duplicate messages while using VirtualTopic.

Issue

• Why below durable subscriber results in TWO identical messages in the destination queue, when only one is sent to the source queue?

package com.test.camel.routes;

import org.apache.camel.builder.RouteBuilder;

public class DataSyncPartyDurableSubscriber extends RouteBuilder {

    public void configure() {

        from("amq:queue:xxx.yyy.Modification")
        .to("amq:topic:VirtualTopic.PartyModification");

        from("amq:topic:VirtualTopic.PartyModification")
        .inOnly("amq:queue:Consumer.zzz.VirtualTopic.PartyModification");

    }
}