message: Fix the bug on changing totalType in column,
diff: @@ -1258,14 +1258,16 @@ export class QuestionMatrixDropdownModelBase
  }
  protected getVisibleTotalRow(): MatrixDropdownRowModelBase {
  if (this.isLoadingFromJson) return null;
  - if (!this.generatedTotalRow && this.hasTotal) {
  + if (this.hasTotal) {
  + if (!this.generatedTotalRow) {
  this.generatedTotalRow = this.generateTotalRow();
  + }
  if (this.data) {
  var properties = { survey: this.survey };
  this.runTotalsCondition(this.data.getAllValues(), properties);
  }
  } else {
  - this.generateTotalRow = null;
  + this.generatedTotalRow = null;
  }
  return this.generatedTotalRow;
  }
  