customer.json -- a checkbox field is added which gives user ability to bypass credit limit check at sales order level for a customer. It is default to 0. Also patch is added to update value of new field to 0 after migrate.
test_customer.js -- It is auto generated file as customer.json is modified. And it is removed.
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index fd7a1b4..41999a9 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -455,3 +455,4 @@
erpnext.patches.v9_0.set_variant_item_description
erpnext.patches.v9_0.set_uoms_in_variant_field
erpnext.patches.v9_0.copy_old_fees_field_data
+erpnext.patches.v9_0.set_bypasscreditlimitcheckatsalesorder_in_customer