When overriding the translation for i18n keys used in user notifications
like user_notifications.reply_by_email, errors were returned for
valid interpolation keys. Keys like topic_title_url_encoded are
supported, so no error should be raised.
https://meta.discourse.org/t/-/50305/7
A site owner attempting to use both the email_subject site setting and translation overrides for normal post notification
email subjects would find themselves frusturated at the lack of template argument parity.
Make all the variables available for translation overrides by adding the subject variables to the custom interpolation keys list and applying them.
Reported at https://meta.discourse.org/t/customize-subject-format-for-standard-emails/20801/47?u=riking
We like to stay as close as possible to latest with rubocop cause the cops
get better.
This update required some code changes, specifically the default is to avoid
explicit returns where implicit is done
Also this renames a few rules
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
* Our codebase currently supports custom interpolations keys that are
not present in the original translation. The proper fix should
be to make `TranslateOverride` aware of such keys.
