Refs -- Removed incorrect sentence in Expression.contains_over_clause docs.
@@ -897,7 +897,7 @@ calling the appropriate methods on the wrapped expression.
Tells Django that this expression contains a
:class:`~django.db.models.expressions.Window` expression. It's used,
for example, to disallow window function expressions in queries that
- modify data. Defaults to ``True``.
+ modify data.
.. attribute:: filterable
