message: fixed infinite update loop in matrixdropdown
diff: </tr>
  </thead>
  <tbody>
  - <tr v-for="row in question.visibleRows">
  + <tr v-for="row in rows">
  <td><survey-string :locString="row.locText"/></td>
  <td v-for="cell in row.cells">
  <survey-errors :question="question" :css="css"/>
  @Component
  export default class MatrixDropdown extends Question<QuestionMatrixDropdownModel> {
  + get rows() {
  + return this.question.visibleRows
  + }
  }
  Vue.component("survey-matrixdropdown", MatrixDropdown)
  </script>
  \ No newline at end of file
  