Steps to replicate the issue (include links if applicable):

• Go to https://commons.wikimedia.org/wiki/Special:UploadWizard
• Select a file to share, hit "Continue"
• Select "This work was created by me and anyone is free to use it."
• Select "This work contains the work of others"
• Select "Yes, the creator has published the work under a free license"
• Go through the rest of the upload process

What happens?:

The user is not asked any further questions about the creator or the original licence.

The file is uploaded attributed to the uploader under whichever licence they requested.

The summary box makes no mention of the file containing the work of others.

What should have happened instead?:

I would have expected the Upload Wizard to ask me more about this "work of others": who the original creator was, and what licence they released it under.

I'd have then expected this information to be included in the summary box of the uploaded file.

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):

https://commons.wikimedia.org/w/index.php?title=File:White_House_ballroom_plan.svg&oldid=1066253344 is a version of a file where I'd gone through the Upload Wizard and ticked "This work contains the work of others". Another user caught that I hadn't actually specified the source, which I'd overlooked: I assume I'd offloaded remembering to do that because I'd told the Upload Wizard that it was a derivative work.

When I raised the issue at https://commons.wikimedia.org/wiki/Commons:Upload_Wizard_feedback#%22This_work_contains_the_work_of_others%22_asking_no_further_details another user said that this "must have broken recently" and that a few months ago it "was asking these questions in that branch".