[FIX] mrp: fix BoM Structure & Cost Report print

Create some attributes with "create dynamically" set
Create a product template using these attributes (=> product variants
should not be created)
Set this product as manufactured, and create an associated BOM with some
components
Try to print the BOM

User will face a traceback due to the product_id being non existant

opw-2283649

closes odoo/odoo#53872

X-original-commit: 4d77ada68fb4d8113a5fbf95f20ccb49d0611fc5
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/mrp/report/mrp_report_bom_structure.py

@@ -208,8 +208,6 @@ class ReportBomStructure(models.AbstractModel):
 
     def _get_pdf_line(self, bom_id, product_id=False, qty=1, child_bom_ids=[], unfolded=False):
 
-        data = self._get_bom(bom_id=bom_id, product_id=product_id.id, line_qty=qty)
-
         def get_sub_lines(bom, product_id, line_qty, line_id, level):
             data = self._get_bom(bom_id=bom.id, product_id=product_id.id, line_qty=line_qty, line_id=line_id, level=level)
             bom_lines = data['components']
@@ -253,6 +251,7 @@ class ReportBomStructure(models.AbstractModel):
 
         bom = self.env['mrp.bom'].browse(bom_id)
         product = product_id or bom.product_id or bom.product_tmpl_id.product_variant_id
+        data = self._get_bom(bom_id=bom_id, product_id=product.id, line_qty=qty)
         pdf_lines = get_sub_lines(bom, product, qty, False, 1)
         data['components'] = []
         data['lines'] = pdf_lines