fix: added patch for custom field and minor fixes
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index a029627a..942acd5 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -297,3 +297,4 @@
 erpnext.patches.v13_0.add_missing_fg_item_for_stock_entry
 erpnext.patches.v13_0.update_subscription_status_in_memberships
 erpnext.patches.v13_0.update_amt_in_work_order_required_items
+erpnext.patches.v13_0.add_custom_field_for_south_africa