Followup from 🐛 Placeholder text not translatable Fixed
In that issue the fix was to pass the value defined as placeholder to the t() function. This is quite different from how the placeholder is handled in Drupal core.
Create a view in a different language other than English.
Translate it to another language.
The placeholder can't be translated unless you use English in the configuration.
The exposed filter can already define a placeholder. Use the one from Drupal core that can be properly translated.
Code.
Migrate BEF placeholders to core placeholders with a post_update function.
BEF placeholder won't be an option anymore.
Not sure
Code that relied on altering the bef placeholder will need modification.
Closed: outdated
6.0
Code
There was a fix or two added around this can you verify on latest dev branch?