fix: Add patch for account fields

erpnext/patches.txt

@@ -352,3 +352,4 @@ erpnext.patches.v13_0.shopping_cart_to_ecommerce
 erpnext.patches.v13_0.update_disbursement_account
 erpnext.patches.v13_0.update_reserved_qty_closed_wo
 erpnext.patches.v14_0.delete_amazon_mws_doctype
+erpnext.patches.v13_0.update_accounts_in_loan_docs

erpnext/patches/v13_0/update_accounts_in_loan_docs.py

@@ -0,0 +1,37 @@
+import frappe
+
+
+def execute():
+	ld = frappe.qb.DocType("Loan Disbursement").as_("ld")
+	lr = frappe.qb.DocType("Loan Repayment").as_("lr")
+	loan = frappe.qb.DocType("Loan")
+
+	frappe.qb.update(
+		ld
+	).inner_join(
+		loan
+	).on(
+		loan.name == ld.against_loan
+	).set(
+		ld.disbursement_account, loan.disbursement_account
+	).set(
+		ld.loan_account, loan.loan_account
+	).where(
+		ld.docstatus < 2
+	).run()
+
+	frappe.qb.update(
+		lr
+	).inner_join(
+		loan
+	).on(
+		loan.name == lr.against_loan
+	).set(
+		lr.payment_account, loan.payment_account
+	).set(
+		lr.loan_account, loan.loan_account
+	).set(
+		lr.penalty_income_account, loan.penalty_income_account
+	).where(
+		lr.docstatus < 2
+	).run()