[IMP] speed improvement, no double None in _fields_triggers

2019-08-26 10:20:09 +00:00
parent d155a0a03a
commit 74b055f75c
1 changed files with 2 additions and 1 deletions
@@ -723,7 +723,8 @@ class Field(MetaField('DummyField', (object,), {})):
            for node in nodes:
                for f in reversed(path):
                    node = node.setdefault(f, {})
-                node.setdefault(None, []).append(self)
+                n = node.setdefault(None, [])
+                if self not in n: n.append(self)

        for dotnames in self.depends:
            field_model = model