Hi @Mueschel. Thank you for the quick quality check. I added those keys as a test in regards to: https://community.openstreetmap.org/t/railway-station-id-confusion-uic-ref/132393 . I am trying to find out whats the best way to deal with the issue of uic_ref not being clearly defined. For now I check every uic_ref change and advice to use ref:ibnr instead if it it actually is an ibnr value. I believe there would be a value in migrating to ref:uic, as that would go in accordance with namespacing principles and allow to monitor the migration more easily, but it seams that getting rid of a legacy key is generally considered to be a bad practice. What do you think about this issue?
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            Published using OSMCha: https://osmcha.org/changesets/168704522
            