I'm getting this error, "ValueError: Invalid field product.product(32,) on model 'mrp.bom'" while trying to update a OCA module to be compatible with version 15. Happens when I go to create the model and try to set a product

Based on an OCA module, mrp_production_request, I haven't changed anything in the model other than that method

I have the "record.bom_id = boms" separated out for debugging, and that's where the error is

@api.onchange("product_id")
def _onchange_product_id(self):
    for record in self:
        if record.product_id:
            record.product_uom_id = record.product_id.uom_id
            boms = record.env["mrp.bom"]._bom_find(
                record.product_id,
                company_id=record.company_id.id,
                picking_type=record.picking_type_id,
            )
            record.bom_id = boms

(What's up with this website, it keeps putting backslashes on all my text, im pretty sure it doesn't like links)

Here's the full error: https://www.toptal.com/developers/hastebin/ifecavurik.trace
OCA Module: https://github.com/OCA/manufacture/blob/13.0/mrp_production_request/models/mrp_production_request.py#L249-L257