TypeError: Button with this name already exists

[lDonKaban]

I am using react-leaflet + typescript. When creating a custom button or copying an existing one, I get this error (TypeError: Button with this name already exists), but if I use the function to generate a random name, 2 buttons will be created in the toolbar. Please tell me how to fix this?

const map = useMap();

  map.pm.Toolbar.copyDrawControl('Rectangle', {
    name: 'RectangleCopy',
    block: 'custom',
    title: 'test',
  });

  map.pm.addControls({  
    position: 'topright',  
    drawCircle: false, 
    drawMarker: false,
    drawCircleMarker: false,
    drawPolyline: false,
    drawRectangle: false,
    drawText: false,
    cutPolygon: false,
    rotateMode: false,
    oneBlock: true,
  });
  
  map.pm.setGlobalOptions({
    snapDistance: 15,
    allowSelfIntersection: false,
    templineStyle: { color: '#183079', dashArray: '5, 5' },
    hintlineStyle: { color: '#183079', dashArray: '5, 5' },
    pathOptions: { color: '#183079', dashArray: '5, 5' },
  });