fix: API fix for loan security pledge creation
diff --git a/erpnext/loan_management/doctype/loan_application/loan_application.py b/erpnext/loan_management/doctype/loan_application/loan_application.py
index 691962b..d3b8164 100644
--- a/erpnext/loan_management/doctype/loan_application/loan_application.py
+++ b/erpnext/loan_management/doctype/loan_application/loan_application.py
@@ -147,7 +147,7 @@
 	return doclist
 
 @frappe.whitelist()
-def create_pledge(loan_application):
+def create_pledge(loan_application, loan=None):
 	loan_application_doc = frappe.get_doc("Loan Application", loan_application)
 
 	lsp = frappe.new_doc("Loan Security Pledge")
@@ -156,6 +156,9 @@
 	lsp.loan_application = loan_application_doc.name
 	lsp.company = loan_application_doc.company
 
+	if loan:
+		lsp.loan = loan
+
 	for pledge in loan_application_doc.proposed_pledges:
 
 		lsp.append('securities', {