Customer name not filled when created as guest from draft order

[gempain]

Bug report

Describe the bug

Customers created from draft orders don't have a first and last name.

System information

Medusa version (including plugins):

"@medusajs/admin": "7.1.11",
"@medusajs/cache-inmemory": "^1.8.9",
"@medusajs/cache-redis": "^1.8.9",
"@medusajs/event-bus-local": "^1.9.8",
"@medusajs/event-bus-redis": "^1.8.11",
"@medusajs/file-local": "^1.0.3",
"@medusajs/inventory": "^1.11.6",
"@medusajs/medusa": "1.20.2",
"@medusajs/medusa-cli": "^1.3.22",
"@medusajs/stock-location": "^1.11.5",

Node.js version: 18

Steps to reproduce the behavior

1. Create a draft order without selecting a customer.
2. Fill in the first and last name and the email with any value
3. Once the order is created, go to the customer list
4. Search for the first or last name used to create the order -> nothing is found
5. Search with the email used for the order -> you find the customer
6. Open the customer found by emaik
7. Notice that their first and last name are not filled

Expected behavior

The customer first and last name, including other fields like phone, should be filled.

Screenshots

Draft order mark as paid:

Customer created:

Code snippets

Additional context