It seems that aggregate groups only work for English originals.
Use case:
This link - https://commons.wikimedia.org/w/index.php?title=Special:Translate&group=agg-Gara_e_fotografisë_së_ushqimit_tradicional_shqiptar_-_2022&action=translate&language=en
is return me error message "The source language of this group is English. Please select another language to translate into."
All pages in this group is in Albanian (sq). And nothing place for set custom language for the aggregate group.
Proposal:
Needs option for change language of the aggregate group.
Suggestions
- Is needs control to addition in one aggregate group only pages with these same PageLanguage
- when first page was added into some group,
- language of this page is became to language of whole group
- the following pages can only be added to this group if they have these same language settings (also in search suggestions should be seen only these pages).
- "language of aggregate groups" should be based on language of pages/messages which this group contains