Markercluster group: ghost cluster popup

We can see a "ghost" 👻 cluster popup when hovering the center of the cluster when markers are displayed. Would it be possible to hide it?

Simulated in local mode (to have the latest version of IoT Map Component) with the following Knobs > markersList data:

{
    "id": "s1",
    "location": {
      "lat": 44.895,
      "lng": 4.87
    },
    "template": "square",
    "status": "warning",
    "tab": {
      "content": "H",
      "type": 0
    },
    "shape": {
      "type": 1,
      "anchored": true,
      "plain": false,
      "color": "#FFCC00"
    },
    "layer": "default",
    "inner": {
      "color": "black"
    }
  },
  {
    "id": "s1000",
    "location": {
      "lat": 44.895,
      "lng": 4.87
    },
    "template": "square",
    "status": "warning",
    "tab": {
      "content": "H",
      "type": 0
    },
    "shape": {
      "type": 1,
      "anchored": true,
      "plain": false,
      "color": "#FFCC00"
    },
    "layer": "default",
    "inner": {
      "color": "black"
    },
    "popup": {
      "title": "title",
      "body": "Lorem ipsum"
    }
  },
  {
    "id": "s2000",
    "location": {
      "lat": 44.895,
      "lng": 4.87
    },
    "template": "square",
    "status": "warning",
    "tab": {
      "content": "H",
      "type": 0
    },
    "shape": {
      "type": 1,
      "anchored": true,
      "plain": false,
      "color": "#FFCC00"
    },
    "layer": "default",
    "inner": {
      "color": "black"
    }
  },

No source file or test is named. Reproduce the ghost cluster popup using the markercluster group and the provided markersList data in local Knobs mode, then trace the hover behavior around overlapping markers. Done means the unwanted popup no longer appears while valid marker popups still work.