`SSI_RadioReset()` not working for graphical radio grid after upgrade to LHS 9.17

Hi!

after upgrading from **Lighthouse Studio 9.15 to 9.17**, `SSI_RadioReset()` no longer seems to deselect graphical radio buttons in a grid question.

Example:

```js
SSI_RadioReset("choices_r1");
```

This worked in 9.15 and reset the first row of the grid question. In 9.17, the call does not throw an error, but the selected graphical radio button remains selected.

The question uses **graphical radio buttons**, which are enabled in the question settings. 

While debugging, I noticed that the internal reset code seems to look for an element like:

```js
choices_r1_graphical
```

but that element does not seem to exist in the generated 9.17 DOM:

Could you confirm whether the DOM structure for graphical radio buttons changed in 9.17, and whether `SSI_RadioReset("choices_r1")` is still supported for grid rows?

Is there a recommended replacement or workaround?

Thanks,
Jens