fetch customer or supplier language and set on sales and purchase flow's form
diff --git a/erpnext/accounts/party.py b/erpnext/accounts/party.py
index 29ed02d..0c8d999 100644
--- a/erpnext/accounts/party.py
+++ b/erpnext/accounts/party.py
@@ -92,9 +92,9 @@
 def set_other_values(out, party, party_type):
 	# copy
 	if party_type=="Customer":
-		to_copy = ["customer_name", "customer_group", "territory"]
+		to_copy = ["customer_name", "customer_group", "territory", "language"]
 	else:
-		to_copy = ["supplier_name", "supplier_type"]
+		to_copy = ["supplier_name", "supplier_type", "language"]
 	for f in to_copy:
 		out[f] = party.get(f)