message: Fix stackoverflow on getting matrix dynamic rowIndex in event on creating new cell
diff: @@ -2306,6 +2306,7 @@ export class QuestionMatrixDropdownModelBase
  return { value: newValue, rowValue: rowValue };
  }
  getRowIndex(row: MatrixDropdownRowModelBase): number {
  + if (!this.generatedVisibleRows) return -1;
  return this.visibleRows.indexOf(row);
  }
  getSharedQuestionByName(
  