Fix variant switcher when overriding ProductVariant model

[rjvandoesburg]

Hi there!

In our application we extend the ProductVariant model like so

ModelManifest::replace(
    \Lunar\Models\Contracts\ProductVariant::class,
   App\Models\ProductVariant::class,
);

When trying to switch using the button on the top right when editing a variant:

The following error is generated.

After some digging I found that in the closure there was a hard reference to the original model, this caused the evaluation in getRecordUrl to not fill the variable properly. Switching to record makes it work even when extending

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
lunar-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 31, 2025 10:00am

[alecritson]

Thanks! @rjvandoesburg 🙇