After Change https://gerrit.wikimedia.org/r/#/c/137462/ the upload icon does not appear, if no action is available.
If you edit a page in alpha mode as anonymous (wgMFAnonymousEditing or a maybe change from this bug https://bugzilla.wikimedia.org/show_bug.cgi?id=59937#c15) and save an edit, the site is loading with javascript and the upload button is shown (disabled but visible). To be consistent, it's better to hide the upload button there, too :)
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=62598