core: Tuya RGBW Strips don't show the "White" slider

The problem

Referencing this issue here (which was falsely closed by the stale bot…): #58906

Essentially the same as this user wrote, just with a “Action LSC Smart Home Outdoor LED Strip”, but long story short some RGBW Tuya devices seem to not show the White slider at all, and setting the RGB picker to White instead just turns all RGB LEDs on to the same value but never uses the proper White LEDs.

What version of Home Assistant Core has the issue?

2022.8.6

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Tuya

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tuya/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

Here are all the “Device Debug” values for my particular LED Strip (LSC Smart Home Outdoor) from the Tuya IoT Cloud for my particular LED strip:

switch_led	
"{true,false}"

work_mode	
{
  "range": [
    "white",
    "colour",
    "scene",
    "music"
  ]
}

bright_value	
{
  "min": 10,
  "max": 1000,
  "scale": 0,
  "step": 1
}

colour_data	
{
  "h": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 360,
    "step": 1
  },
  "s": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  },
  "v": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  }
}

scene_data	
{
  "scene_num": {
    "min": 1,
    "scale": 0,
    "max": 8,
    "step": 1
  },
  "scene_units": {
    "unit_change_mode": {
      "range": [
        "static",
        "jump",
        "gradient"
      ]
    },
    "unit_switch_duration": {
      "min": 0,
      "scale": 0,
      "max": 100,
      "step": 1
    },
    "unit_gradient_duration": {
      "min": 0,
      "scale": 0,
      "max": 100,
      "step": 1
    },
    "bright": {
      "min": 0,
      "scale": 0,
      "max": 1000,
      "step": 1
    },
    "temperature": {
      "min": 0,
      "scale": 0,
      "max": 1000,
      "step": 1
    },
    "h": {
      "min": 0,
      "scale": 0,
      "unit": "",
      "max": 360,
      "step": 1
    },
    "s": {
      "min": 0,
      "scale": 0,
      "unit": "",
      "max": 1000,
      "step": 1
    },
    "v": {
      "min": 0,
      "scale": 0,
      "unit": "",
      "max": 1000,
      "step": 1
    }
  }
}

countdown	
{
  "min": 0,
  "max": 86400,
  "scale": 0,
  "step": 1
}

music_data	
{
  "change_mode": {
    "range": [
      "direct",
      "gradient"
    ]
  },
  "bright": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  },
  "temperature": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  },
  "h": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 360,
    "step": 1
  },
  "s": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 255,
    "step": 1
  },
  "v": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 255,
    "step": 1
  }
}

control_data	
{
  "change_mode": {
    "range": [
      "direct",
      "gradient"
    ]
  },
  "bright": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  },
  "temperature": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 1000,
    "step": 1
  },
  "h": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 360,
    "step": 1
  },
  "s": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 255,
    "step": 1
  },
  "v": {
    "min": 0,
    "scale": 0,
    "unit": "",
    "max": 255,
    "step": 1
  }