There are still some i18n messages in the Page-Previews codebase that now should go to the Cite extension because it's responsible for the Reference Previews .
They are mostly prefixed with popups-refpreview-. Probably it's best to:
- Look for some guideline how to do that, or ask Raymond what's best
- Move i18n en and qqq to Cite and stick to the names and in parallel remove them from the Popups extension
- Wait for the import of the translations and deployment.
- Ask communities with overrides to either create a copy for the new key name, remove the override or put it on translate wiki
- Rename keys in the Cite extension
and add fall-backs for old messages to address on-wiki overrides
[] Copy any on-wiki message overrides and make it clear that the old keys are deprecated.
[] Remove the fallback mechanism for the popups- keys in Cite
- Wait for the deployment of the renames
- Ask the communities with override to remove the deprecated overrides
Note, that popups-refpreview-user-preference-label is part of the user settings that are still created by the Popups extension. See T363162: Move ReferencePreviews user setting creation from Popups to Cite