Internal issue 3144 - Radio groups created by loops can affect each other

Nobody has claimed this yet.

h3. Summary of the bug

When creating radio groups via a loop (e.g. mapping over an array), if the label of the radio group/options is the same, clicking on the _text_ of any option outside the first group will also change the value of the first group. This does not happen when clicking the buttons themselves or when each group/option is given unique labels.

h3. 🪜 How to reproduce

- Create radio groups with the same labels via a loop.
- Click on the text of any group other than the first.
- First group will change with the one being clicked.

h3. 📸 Screenshots or code

[StackBlitz|https://stackblitz.com/edit/n2dgwg6r?file=src%2Fapp.tsx] (see attachments for demonstration)

Code (commented sections stop the problem occurring):

```export default function App() {
const [array, setArray] = useState<{ value: string }[]>([
{ value: "none" },
{ value: "none" },
{ value: "none" },
]);

const handleSelect = (value: string, index: number) =>
setArray((arr) => {
arr[index].value = value;
return arr;
});

return (
<>
{array.map((object, index) => {
return (

handleSelect(ev.detail.value, index)}
/>
handleSelect(ev.detail.value, index)}
/>

);
})}

);
}
```

h3. 🖥 📱 Device

* Type: Laptop/Desktop
* Device: MacBook/Linux PC
* OS version: macOS26.2/?
* Browser version: Chrome 143/Chrome 130

h3. 🧐 Expected behaviour

Clicking on the text of a radio option should only select that option.

h3. 📝 Acceptance Criteria

_Given_ a set of radio groups created via a loop,

_When_ clicking on an option in the radio groups

_Then_ no other option is selected

h3. 🚨 Urgency (low, medium or high)

Low

h3. Additional info

None

Start with the reproduction in src/app.tsx from the linked StackBlitz, focusing on how IcRadioGroup and IcRadioOption handle repeated labels when rendered in a loop. Reproduce the text-click behavior, then trace the component implementation and add coverage for the acceptance criteria: selecting an option must not select an option in another group.

Written by the indexing model from the issue text.