Description
Abstract Content is stored using the MW action=edit API, which can fail for a variety of reasons (e.g. non valid Abstract Content...)
Desired behavior/Acceptance criteria
- On submission from the PublishDialog, on failed response, show a clear actionable error message
Completion checklist
- Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist