default boolean shouldReplicateSourceDefault(String prop) {
        return false;
    }
Specifies how to replicate the given topic configuration property
that has a default value on the source cluster. Only invoked for properties
that {@link #shouldReplicateConfigProperty(String)} has returned
{@code true} for.

@return {@code true} if the default value from the source topic should be synced
to the target topic, and {@code false} if the default value for the target topic
should be used instead
connect/mirror/src/main/java/org/apache/kafka/connect/mirror/ConfigPropertyFilter.java