User story: N/A

We have this:
Once a user has arrived at the Add data step, even if no structured data is added, the "Publish data" button at is active (both at the top and the bottom). This makes no sense, because there is nothing to publish yet. The only possible action if nothing has been added yet should be to "Skip this."

We want this:
When nothing has been added on the Add data step, the Publish data button should be inactive.

Screenshots (if possible):

^How it works now. No changes, yet the Publish button is active.

Acceptance Criteria:

Can be tested on https://commons.wikimedia.beta.wmflabs.org/wiki/Special:UploadWizard

• Publish data buttons should be inactive until changes to the file(s) have been made

QA Results