bad field types with PurchaseOrder.xsd

when generating the Odoo mixins for https://learn.microsoft.com/en-us/visualstudio/xml-tools/sample-xsd-file-purchase-order-schema?view=vs-2022

orderDate, confirmDate and comment are generated as fields.Float, so with wrong types
This can be seen here https://github.com/OCA/l10n-brazil/blob/14.0/spec_driven_model/tests/spec_poxsd.py