camel-core - Nested enrich with shareUnitOfWork=true result in ConcurrentModificationException

from("direct:routeA").
    enrichWith("direct:routeB", true, true).body((a, b) -> a);

from("direct:routeB").
    enrichWith("direct:routeC", true, true).body((a, b) -> a);

from("direct:routeC").setBody(constant("xxx")); 

org.apache.camel.CamelExchangeException: Error occurred during aggregation. Exchange[0A01B3DD98090F3-0000000000000001]. Caused by: [java.util.ConcurrentModificationException - null]
 at org.apache.camel.processor.Enricher$1.done(Enricher.java:247) ~[camel-core-processor-3.7.3.jar:3.7.3]
 at org.apache.camel.AsyncCallback.run(AsyncCallback.java:44) ~[camel-api-3.7.3.jar:3.7.3]
 ...
Caused by: java.util.ConcurrentModificationException
 at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1042) ~[?:?]
 at java.util.ArrayList$Itr.remove(ArrayList.java:1010) ~[?:?]
 at org.apache.camel.impl.engine.DefaultUnitOfWork.handoverSynchronization(DefaultUnitOfWork.java:202) ~[camel-base-engine-3.7.3.jar:3.7.3]
 at org.apache.camel.impl.engine.DefaultUnitOfWork.handoverSynchronization(DefaultUnitOfWork.java:179) ~[camel-base-engine-3.7.3.jar:3.7.3]
 at org.apache.camel.support.DefaultExchange.handoverCompletions(DefaultExchange.java:612) ~[camel-support-3.7.3.jar:3.7.3]
 at org.apache.camel.processor.Enricher$1.done(Enricher.java:242) ~[camel-core-processor-3.7.3.jar:3.7.3]
 ...