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-rw-r--r--activesupport/lib/active_support/core_ext/duplicable.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/duplicable.rb b/activesupport/lib/active_support/core_ext/duplicable.rb
index adbbfd8c60..8f49ddfd9e 100644
--- a/activesupport/lib/active_support/core_ext/duplicable.rb
+++ b/activesupport/lib/active_support/core_ext/duplicable.rb
@@ -35,3 +35,9 @@ class Numeric #:nodoc:
false
end
end
+
+class Class #:nodoc:
+ def duplicable?
+ false
+ end
+end