From 3f93410a04e154b23d609ef39b35b5f8a08c4362 Mon Sep 17 00:00:00 2001
From: Jared Kipe <jared@hibou.io>
Date: Thu, 11 Jun 2020 08:29:39 -0700
Subject: [PATCH] [FIX] maintenance_usage: keyword constructors shouldn't use
 mutable types

---
 maintenance_usage/models/maintenance.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/maintenance_usage/models/maintenance.py b/maintenance_usage/models/maintenance.py
index 60bad798..c0a785bd 100644
--- a/maintenance_usage/models/maintenance.py
+++ b/maintenance_usage/models/maintenance.py
@@ -56,7 +56,9 @@ class MaintenanceEquipment(models.Model):
         result = super(MaintenanceEquipment, self).write(values)
         return result
 
-    def _log_usage(self, values={}):
+    def _log_usage(self, values=None):
+        if not values:
+            values = {}
         values['equipment_id'] = self.id
         values['date'] = fields.Datetime.now()
         self.env['maintenance.usage.log'].create(values)