Users that start working on the first translation but leave the page may not be aware on how to get back to it. That could happen especially if users get into the translation editor from the beta campaign (T89701).
Some possible solutions:
- Send an #Echo notification when a user leaves the tool with the first translation incomplete. We can thank the user for starting a translation and let they know that they can continue it anytime from the Contributions page. We need to make sure that the notification is sent when there is a high confidence that the user left the draft editing and it is not conflicting with the notification of first-time publishing (e.g., the 1st publish notification replaces it if it was not read)
- Capture the event of the user leaving the page. When the user tries to leave the editor, after having started the translation, and only the first time, we can interrupt the process to announce that the translation is saved and can be continued from the Contributions page. The above solution would be preferred since it is les annoying, but doing this once and only once can be acceptable.