When adding a new topic using Flow, the "Add topic" button is grayed out until some content is added to the top field. This could be confusing for some users, who might take it to mean that they are not able to add a topic to the page for whatever reason. (Wikimedians might assume that it means the page is protected, for example.) I recommend adding a tooltip to the button explaining the situation appropriately.
Version: unspecified
Severity: normal