Validation error message header not translated (activerecord.errors.template.header seems to be ignored in YAML localization file)

Hello, i am not sure where to report this, i have created an issue at

https://github.com/svenfuchs/rails-i18n/issues/118

It seems that activerecord.errors.template.header is ignored in YAML localization file.

Changing or translating it has no effect on the rendered header for validation errors.

Thank you for any comments,

Alexey.