[POS] fixed issue of negative stock
diff --git a/erpnext/accounts/doctype/sales_invoice/pos.py b/erpnext/accounts/doctype/sales_invoice/pos.py
index 53144cb..8f9db21 100644
--- a/erpnext/accounts/doctype/sales_invoice/pos.py
+++ b/erpnext/accounts/doctype/sales_invoice/pos.py
@@ -222,6 +222,7 @@
 
 def save_invoice(e, si_doc, name):
 	if not frappe.db.exists('Sales Invoice', {'offline_pos_name': name}):
+		si_doc.docstatus = 0
 		si_doc.flags.ignore_mandatory = True
 		si_doc.insert()
 		make_scheduler_log(e, si_doc.name)