Steps to Reproduce:
Visit a user page on Wikimedia Commons, for instance https://commons.wikimedia.org/wiki/User:Bjh21, and look for "User uploads" under "Toolbox" in the sidebar.
Actual Results:
There is no link labelled "User uploads"
Expected Results:
There should be a link labelled "User uploads" linking to a list of uploads by the user whose user page I'm looking at.
This link is meant to be provided by the UploadsLink extension. Apparently it recently broke in the Monobook skin (T254548), but now it seems to be broken in Vector as well.