[4.x]: Address with First Name or Last Name with more than one word get stripped

[aodihis]

What happened?

Description

In Commerce we can specify the address with the first name and last name instead sent it as the full name, when we save it the address the data is still correct but if the cart get updated after same the address, the first/ last name with more than 1 one get stripped.

Recently also Craft has an update to add showFirstAndLastNameFields, so by right it should be possible to save first name or last name with more than one word.

Steps to reproduce

1. Create an order on CMS/FE with the address first name with two words. For example: First Name: John Doe, Last Name: Eric.
2. Update the order, on cms we can just click update button or in FE can be trigger by adding coupon.

Expected behavior

On step 2 the Name on the address should no get stripped.

Actual behavior

The first name got stripped and become John.

Craft CMS version

4.6.0

Craft Commerce version

4.3.2

PHP version

No response

Operating system and version

No response

Database type and version

No response

Image driver and version

No response

Installed plugins and versions

[lukeholder]

Duplicate of #3356

[lukeholder]

Please follow the other issue for the fix. Thanks.