Scenarios:

• Row groups with page breaks: Rows reference cell IDs that are not present on the current page, resulting in missing references.
• Nested tables: Outer table rows reference IDs for cells containing inner tables, but those IDs are not rendered.
• Plain tables and certain controls: These render correctly with no missing references.
  

Observed:

• Violations of accessibility standards (WCAG 2.1 SC 1.3.1 / 4.1.2), with screen readers announcing empty rows and tools like axe-core reporting errors.

Expected:

• 'aria-owns' lists only IDs that are rendered, and a row with no rendered cells is omitted (or rendered with role="presentation").