first commit

modules/sale_product_customer/account.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.pool import Pool, PoolMeta
+from trytond.tools import cached_property
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @cached_property
+    def product_name(self):
+        pool = Pool()
+        SaleLine = pool.get('sale.line')
+        name = super().product_name
+        if (isinstance(self.origin, SaleLine)
+                and self.origin.product_customer):
+            name = self.origin.product_customer.rec_name
+        return name