Threshold Marker is shown when set to Off

[atifali]

What happened:
Running a simple time-series panel and seeing the threshold marker even when the Show thresholds is set to Off:

Note that the default threshold of 80 is being shown here, no other explicit thresholds were set.

What you expected to happen:
I would expect the marker to not show up at all.

How to reproduce it (as minimally and precisely as possible):
Here is the panel JSON if needed:

{
  "id": 23763571993,
  "gridPos": {
    "h": 10,
    "w": 24,
    "x": 0,
    "y": 0
  },
  "type": "timeseries",
  "title": "Test Panel",
  "fieldConfig": {
    "defaults": {
      "custom": {
        "drawStyle": "line",
        "lineInterpolation": "linear",
        "barAlignment": 0,
        "lineWidth": 1,
        "fillOpacity": 0,
        "gradientMode": "none",
        "spanNulls": false,
        "showPoints": "auto",
        "pointSize": 5,
        "stacking": {
          "mode": "none",
          "group": "A"
        },
        "axisPlacement": "auto",
        "axisLabel": "",
        "scaleDistribution": {
          "type": "linear"
        },
        "hideFrom": {
          "tooltip": false,
          "viz": false,
          "legend": false
        },
        "thresholdsStyle": {
          "mode": "off"
        }
      },
      "color": {
        "mode": "palette-classic"
      },
      "thresholds": {
        "mode": "absolute",
        "steps": [
          {
            "color": "green",
            "value": null
          },
          {
            "color": "red",
            "value": 80
          }
        ]
      },
      "mappings": []
    },
    "overrides": []
  },
  "options": {
    "tooltip": {
      "mode": "single"
    },
    "legend": {
      "displayMode": "list",
      "placement": "bottom",
      "calcs": []
    }
  },
  "datasource": null
}

Environment:

• Grafana version: main
• Data source type & version: gdev-testdata
• OS Grafana is installed on: macOS (dev run)
• User OS & Browser: macOS, Chrome

[atifali]

@leeoniya is this what you were seeing as well?