this.externalRepositories = List.copyOf(externalRepositories);
        this.repositories = List.copyOf(externalRepositories);
        this.ids = new HashSet<>();
    }

    protected DefaultModelRepositoryHolder(DefaultModelRepositoryHolder holder) {
        this.session = holder.session;
        this.repositoryMerging = holder.repositoryMerging;
        this.pomRepositories = List.copyOf(holder.pomRepositories);