lib/active_support/dependencies.rb in activesupport-5.1.4 vs lib/active_support/dependencies.rb in activesupport-5.1.5.rc1

@@ -454,9 +454,10 @@
     def autoload_module!(into, const_name, qualified_name, path_suffix)
       return nil unless base_path = autoloadable_module?(path_suffix)
       mod = Module.new
       into.const_set const_name, mod
       autoloaded_constants << qualified_name unless autoload_once_paths.include?(base_path)
+      autoloaded_constants.uniq!
       mod
     end
 
     # Load the file at the provided path. +const_paths+ is a set of qualified
     # constant names. When loading the file, Dependencies will watch for the