Tree parsing question about liqp HOT 5 CLOSED

TemplateFactory.newInstance()
        .parse("{% for i in (1..10000) %}{{ i }}{% endfor %}")
        .rendering(model="{}", settings={
          maxRenderTimeMillis = 1
          executor = Executors.newSingleThreadExecutor()
        }
        .hasRenderError(TimeoutException::class.java)

Template parsed = TemplateFactory.newInstance()
        .parse("{% for i in (1..10000) %}{{ i }}{% endfor %}");
assertThat(parsed)
         .rendering("{}",  settings-> 
            settings.maxRenderTimeMillis(1)
            settings.executor(Executors.newSingleThreadExecutor())
         )
        .hasRenderError(TimeoutException::class.java)

package liqp.filters;

import static org.hamcrest.core.IsEqual.equalTo;

import liqp.Template;
import liqp.TemplateContext;
import liqp.nodes.LNode;
import liqp.tags.Tag;
import org.antlr.runtime.RecognitionException;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

public class CustomTagNesting {

  @BeforeClass
  public static void registerTags() {
    Tag.registerTag(new XmlTag("red"));
    Tag.registerTag(new XmlTag("bold"));
    Tag.registerTag(new XmlTag("yellow"));
    Tag.registerTag(new XmlTag("green"));
  }

    @Test
    public void applyTest() throws RecognitionException {

      final String rendered = Template.parse("{%red%}{%bold%}Red and {%yellow%}yellow{%endyellow%} and " +
            "{%green%}green{%endgreen%}{%endbold%}{%red%}")
            .render("{}");

      Assert.assertThat(rendered, equalTo("<red><bold>Red and <yellow>yellow</yellow> and " +
            "<green>green</green></bold></red>"));
    }

    public static class XmlTag extends Tag {

      public XmlTag(String tag) {
        super(tag);
      }

      @Override
      public Object render(TemplateContext context, LNode... nodes) {
        final StringBuilder output = new StringBuilder();
        output.append("<").append(this.name).append(">");
        for (LNode node : nodes) {
          output.append(node.render(context));
        }
        output.append("</").append(this.name).append(">");
        return output.toString();
      }
    }
}

java.lang.AssertionError: 
Expected: "<red><bold>Red and <yellow>yellow</yellow> and <green>green</green></bold></red>"
     got: "<red><bold>Red and <yellow>yellow</yellow> and <green></green>green</bold></red><red></red>"

Expected :"<red><bold>Red and <yellow>yellow</yellow> and <green>green</green></bold></red>"
Actual   :"<red><bold>Red and <yellow>yellow</yellow> and <green></green>green</bold></red><red></red>"