JiraConverter: P inside LIs results in separate list

[znerd]

Test case:

package com.vladsch.flexmark.jira.converter;

import static com.vladsch.flexmark.parser.Parser.EXTENSIONS;
import static java.util.Collections.singletonList;
import static org.junit.jupiter.api.Assertions.assertEquals;

import com.vladsch.flexmark.html.HtmlRenderer;
import com.vladsch.flexmark.parser.Parser;
import com.vladsch.flexmark.util.ast.Document;
import com.vladsch.flexmark.util.data.MutableDataSet;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;

final class JiraConverterExtensionTest {
  private static Document DOCUMENT;

  @BeforeAll
  static void setUp() {
    DOCUMENT = Parser.builder().build().parse("1. a\n\n2. b");
  }

  @Test
  void renderHtml() {
    final String htmlText = HtmlRenderer.builder().build().render(DOCUMENT);
    assertEquals("<ol>\n<li>\n<p>a</p>\n</li>\n<li>\n<p>b</p>\n</li>\n</ol>\n", htmlText);
  }

  @Test
  void renderJira() {
    final String jiraText =
        HtmlRenderer.builder(
                new MutableDataSet()
                    .set(EXTENSIONS, singletonList(JiraConverterExtension.create())))
            .build()
            .render(DOCUMENT);
    assertEquals("# a\n# b\n", jiraText);
  }
}

The HTML rendering is fine, but the JIRA rendering is not; instead of a single list with two list items:

# a
# b

…two lists are generated, both with a single list item:

# a

# b

It looks like this should be addressed in the JiraConverterNodeRenderer class.