fix: Se corrigen errores en 6.8

report_close_statement.py

@@ -43,10 +43,11 @@ class ReportCloseStatementStart(ModelView):
     @classmethod
     def default_shop(cls):
         context = Transaction().context
+        if context:
             shop = context['shop']
-
             if shop:
                 return shop
+        return
 
 
 class PrintReportCloseStatement(Wizard):

sale.py

@@ -126,10 +126,6 @@ class Sale(metaclass=PoolMeta):
 
     @classmethod
     def get_invoice(cls, record):
-        pool = Pool()
-        ctx = Transaction().context
-        Shop = pool.get('sale.shop')
-        shop = Shop.search([('id', '=', ctx["shop"])])[0]
         if record.state != 'draft' and record.invoices:
             invoice = record.invoices[0]
             data = {}

sale.xml

@@ -2,6 +2,7 @@
 <!--This file file is part of Tryton. The COPYRIGHT file at the top level
     of this repository contains the full copyright notices and license terms. -->
 <tryton>
+    <data>
 	<record model="ir.ui.view" id="sale_view_tree">
             <field name="model">sale.sale</field>
 	    <field name="inherit" ref="sale.sale_view_tree"/>
@@ -53,4 +54,5 @@
             <field name="model">sale.sale,-1</field>
             <field name="action" ref="report_customer_order"/>
 	</record>
+    </data>
 </tryton>

view/sale_form.xml

@@ -12,7 +12,8 @@ this repository contains the full copyright notices and license terms. -->
 	</group>
 	<newline/>
     </xpath>
-    <xpath expr="/form/notebook/page[@id='sale']/group[@id='amount']/field[@name='tax_amount']" position="after">
+    <xpath expr="/form/notebook/page[@id='sale']/group[@id='amount']/field[@name='tax_amount']"
+	   position="after">
 	<label name="total_discount"/>
 	<field name="total_discount"/>
     </xpath>