When using a substitution in configuration to set the seed nodes in cluster the following result has been produced: all memory on a laptop is loaded by akka.net process (up to 9Gb in several minutes) and process is terminated after all

• Akka.Net version I'm using - netcore branch https://github.com/akkadotnet/akka.net/tree/v1.3
• windows 10 netstandart1.6
• unit test to reproduce the issue:
  [Fact]
  public void Can_concatenate_substituted_unquoted_string_OOM()
  {
  var hocon = @"akka.cluster.name = rucluster
  akka.cluster.seed-nodes =[akka.tcp://${akka.cluster.name}@127.0.0.1:4053] ";
  Assert.Equal("[akka.tcp://rucluster@127.0.0.1:4053", ConfigurationFactory.ParseString(hocon).GetString("akka.cluster.seed-nodes"));
  }