Redmine

this change restores a removed optimization https://www.redmine.org/issues/31384

see https://github.com/ruby-i18n/i18n/pull/612

diff --git a/lib/redmine/i18n.rb b/lib/redmine/i18n.rb
index b1066539f..13b84512f 100644
--- a/lib/redmine/i18n.rb
+++ b/lib/redmine/i18n.rb
@@ -157,7 +157,7 @@ module Redmine

     # Custom backend based on I18n::Backend::Simple with the following changes:
     # * available_locales are determined by looking at translation file names
-    class Backend < ::I18n::Backend::Simple
+    class Backend < ::I18n::Backend::LazyLoadable
       module Implementation
         # Get available locales from the translations filenames
         def available_locales