Prevent Wizard State to start with '_'

review585006

CHANGELOG

@@ -1,3 +1,4 @@
+* Prevent Wizard State name to start with '_'
 * Add completion attribute for Many2One, Many2Many and One2Many
 * Add ViewSearch
 * Add domains on Action Window

trytond/wizard/wizard.py

@@ -166,6 +166,8 @@ class Wizard(WarningErrorMixin, URLMixin):
         # Set states
         cls.states = {}
         for attr in dir(cls):
+            if attr.startswith('_'):
+                continue
             if isinstance(getattr(cls, attr), State):
                 cls.states[attr] = getattr(cls, attr)