Merge branch 'save_as_admin_item' of Sim/coin into master

hardware_provisioning/admin.py

@@ -63,6 +63,7 @@ class ItemAdmin(admin.ModelAdmin):
         'designation', 'mac_address', 'serial',
         'owner__email', 'owner__nickname',
         'owner__first_name', 'owner__last_name')
+    save_as = True
     actions = ['give_back']
 
     def give_back(self, request, queryset):