Dynamic Matrix - A row gets an invalid value after being reordered

[JaneSjs]

T19009 - Drag-and-Drop Row Functionality Not Working Properly with Conditional Visibility (visibleIf) in MatrixDynamic Question
https://surveyjs.answerdesk.io/internal/ticket/details/T19009

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View Demo

2024-07-16_12-40-28.mp4

[andrewtelnov]

@OlgaLarina The issue is probably related to the dropdown react rendering.
I have tried it with the following JSON that works correctly:

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "matrixdynamic",
     "name": "matrix",
     "columns": [
      {
       "name": "col1",
       "cellType": "radiogroup",
       "choices": [
        "a",
        "b",
        "c"
       ]
      },
      {
       "name": "col2",
       "cellType": "text",
       "visibleIf": "{row.col1}='a'"
      }
     ],
     "allowRowsDragAndDrop": true
    }
   ]
  }
 ]
}

However, the following JSON works incorrectly:

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "matrixdynamic",
     "name": "matrix",
     "columns": [
      {
       "name": "col1",
       "cellType": "dropdown",
       "choices": [
        "a",
        "b",
        "c"
       ]
      },
      {
       "name": "col2",
       "cellType": "text",
       "visibleIf": "{row.col1}='a'"
      }
     ],
     "allowRowsDragAndDrop": true
    }
   ]
  }
 ]
}