fix for https://sentry.galaxyproject.org/organizations/galaxy/issues/…

[bgruening]

This hopefully fixes: https://sentry.galaxyproject.org/organizations/galaxy/issues/148718/?project=7

Looks like there was no unique before the change: https://github.com/galaxyproject/galaxy/blame/19a1f90a96cbf245949b1bbd6b9019482ffceade/lib/galaxy/tools/actions/upload_common.py

How to test the changes?

(Select all options that apply)

• I've included appropriate automated tests.
• This is a refactoring of components with existing test coverage.
• Instructions for manual testing are as follows:
  1. [add testing steps and prerequisites here if you didn't write automated tests covering all your changes]

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.

[jdavcs]

The right fix is here: 6815239 (I fixed it for dev, but not 23.2, sorry!)
(i.e., unique must be applied to the result)

[bgruening]

I had this fix at first, but could not see the unique in the older versions. Do you want to backport your fix? Or should I?

[jdavcs]

I had this fix at first, but could not see the unique in the older versions. Do you want to backport your fix? Or should I?

Doing it now.