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-rw-r--r--activesupport/lib/active_support/dependencies.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/dependencies.rb b/activesupport/lib/active_support/dependencies.rb
index e845408137..f5d047ee07 100644
--- a/activesupport/lib/active_support/dependencies.rb
+++ b/activesupport/lib/active_support/dependencies.rb
@@ -155,7 +155,7 @@ module Dependencies #:nodoc:
name_error = NameError.new("uninitialized constant #{qualified_name}")
file_path = search_for_autoload_file(path_suffix)
- if file_path # We found a matching file to load
+ if file_path #&& ! loaded.include?(file_path) # We found a matching file to load
require_or_load file_path, qualified_name
raise LoadError, "Expected #{file_path} to define #{qualified_name}" unless from_mod.const_defined?(const_name)
return from_mod.const_get(const_name)