fix: prevent delivery method flipping on address change

[pbennett1-godaddy]

Summary

Fixes a checkout delivery-method regression when both enableLocalPickup and enableShipping are enabled.

Previously, if a shopper selected local pickup first, causing a pickup fulfillment location to be applied, then switched to shipping and entered a shipping address, a draft-order refetch could
rehydrate deliveryMethod from the order’s line-item fulfillment mode. Because the order still looked like pickup at that moment, the UI could flick back from shipping to local pickup.

This change prevents draft-order refetch hydration from overwriting the shopper’s explicit delivery-method selection while still allowing the delivery method form to default/correct the method when
only one delivery option is available.

Changeset

• Changeset added (docs)

Test Plan

Added regression and edge-case coverage for delivery-method stability during draft-order sync/refetch flows:

• Keeps shipping selected when a shipping address sync refetches a prior pickup order.
• Keeps pickup selected when a draft-order refetch still looks like shipping.
• Keeps shipping selected when a stale pickup refetch arrives during delivery-method switching.
• Defaults to pickup when shipping is disabled and the order-derived method is shipping.
• Defaults to shipping when pickup is disabled and the order-derived method is pickup.
• Keeps an explicit delivery selection across mixed-fulfillment refetches.
• Confirms as shipping after pickup-to-shipping address sync/refetch, ensuring no pickup fulfillment fields are sent.

Validated with:

pnpm --filter @godaddy/react test -- checkout-draft-order-sync.test.tsx                                                                                                                                 
pnpm --filter @godaddy/react typecheck                                                                                                                                                                  

[changeset-bot]

🦋 Changeset detected

Latest commit: a056ca9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@godaddy/react	Patch
nextjs	Patch

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