fix(docx): Missing list items after numbered header (#2665)

[emreclsr]

Description

This commit fixes an issue where list items immediately following headings (especially numbered headings) were not being processed correctly in Word documents.

While working with Word document conversion, I encountered a similar issue to #2665 where list items after headings were missing from the output. This PR addresses the root cause of this problem.

Changes

• Clear list history after headings to allow new lists to start
• Reset level tracking when heading resets hierarchy
• Reset level_at_new_list when a heading is added
• Replace else block with explicit elif condition for new list sequences
  • Only continue existing list if parent is actually a ListGroup
  • Handle different numid or missing ListGroup parent by creating new list

Testing

Added test case test_list_items_after_numbered_heading to verify:

• List items appear correctly after numbered headings
• Heading has ListGroup as child
• List group contains the expected list items
• Document structure is properly maintained

All existing tests continue to pass. No groundtruth files were modified, indicating the fix addresses the bug without breaking existing functionality.

Related Issues

This fix may also resolve #2665 as it addresses the same underlying problem.

Checklist

• Documentation has been updated, if necessary. (N/A - internal fix)
• Examples have been added, if necessary. (N/A - bug fix)
• Tests have been added, if necessary. Added test_list_items_after_numbered_heading

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✅ DCO Check Passed

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Related Documentation

Checked 4 published document(s) in 1 knowledge base(s). No updates required.

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[emreclsr]

Description

This PR improves test coverage for the list-after-heading fix by adding test cases for enumerated (numbered) lists following headings, achieving 100% code coverage for the related changes.

Changes

Test Data

• Extended list_after_num_headers.docx with enumerated list test case
  • Added "Title 2" → "Sub Title 1" heading with numbered list items

Test Code

• Enhanced test_list_items_after_numbered_heading to verify both:
  • Bullet lists after numbered headings (existing)
  • Enumerated lists after numbered headings (new)

Groundtruth Files

• Updated .md, .itxt, and .json files to reflect new test content