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-rw-r--r--activemodel/lib/active_model/attribute.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/attribute.rb b/activemodel/lib/active_model/attribute.rb
index b75ff80b31..27f3e38e31 100644
--- a/activemodel/lib/active_model/attribute.rb
+++ b/activemodel/lib/active_model/attribute.rb
@@ -233,6 +233,10 @@ module ActiveModel
false
end
+ def forgetting_assignment
+ dup
+ end
+
def with_type(type)
self.class.new(name, type)
end