fix: test cases

(cherry picked from commit 1b556d1c53)

erpnext/accounts/doctype/pos_invoice/test_pos_invoice.py

@@ -439,6 +439,7 @@ class TestPOSInvoice(unittest.TestCase):
 		)
 
 		si.get("items")[0].serial_no = serial_nos[0]
+		si.update_stock = 1
 		si.insert()
 		si.submit()
 

erpnext/accounts/doctype/pos_invoice_merge_log/test_pos_invoice_merge_log.py

@@ -442,7 +442,7 @@ class TestPOSInvoiceMergeLog(unittest.TestCase):
 			pos_inv2.append('payments', {
 				'mode_of_payment': 'Cash', 'account': 'Cash - _TC', 'amount': 100
 			})
-			pos_inv.submit()
+			pos_inv2.submit()
 
 			consolidate_pos_invoices()