The report builds its excluded rows as a group per currency -- the
transfer legs and, when a tolerance admitted one, the fee -- so its tbody
children nest two arrays deep. h flattened only one level, so each group
was stringified and the page showed "[object HTMLTableRowElement]" wherever
a period held a matched transfer. Children now flatten all the way down.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>