As part of the Article Guidance work (T396029), the workflow takes in consideration when the Wikipedia has already an article with the provided title to invite users to update the title. This was specified and implemented in T421196: Support case where the article title is already taken.
A regression seem to have affected this part of the process. Currently, it is possible to select an article that already exists and proceed with the workflow without an appropriate handling.
An example is illustrated below based on the following steps:
- Start a new article on Simple English Wikipedia with the title "Blues".
- Continue through the Article Guidance Workflow, observing that the UI behaves as if the article didn't exist.
- Reach Visual Editor and observe how the existing article contents are loaded.
