message: Fxing bug in label generation for multiple groupbys
diff: @@ -77,17 +77,16 @@ function getMaxLabelSize(container, axisClass) {
  /* eslint-disable camelcase */
  function formatLabel(column, verbose_map) {
  let label;
  - if (verbose_map) {
  if (Array.isArray(column) && column.length) {
  - label = verbose_map[column[0]];
  + label = verbose_map[column[0]] || column[0];
  if (column.length > 1) {
  - label += `, ${column.slice(1).join(', ')}`;
  + label += ', ';
  }
  + label += column.slice(1).join(', ');
  } else {
  - label = verbose_map[column];
  + label = verbose_map[column] || column;
  }
  - }
  - return label || column;
  + return label;
  }
  /* eslint-enable camelcase */
  