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-rw-r--r--activesupport/lib/active_support/core_ext/string/output_safety.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/string/output_safety.rb b/activesupport/lib/active_support/core_ext/string/output_safety.rb
index c6d861d124..5b39fd6a6a 100644
--- a/activesupport/lib/active_support/core_ext/string/output_safety.rb
+++ b/activesupport/lib/active_support/core_ext/string/output_safety.rb
@@ -119,6 +119,12 @@ module ActiveSupport #:nodoc:
@dirty = other.dirty?
end
+ def clone_empty
+ new_safe_buffer = self[0, 0]
+ new_safe_buffer.instance_variable_set(:@dirty, @dirty)
+ new_safe_buffer
+ end
+
def concat(value)
if dirty? || value.html_safe?
super(value)