Edit button in non-editable algorithm

I have an algorithm that belongs to a failed experiment: https://www.beat-eu.org/platform/algorithms/siebenkopf/ROC/ The experiment was not deleted yet, and I should not be able to edit the algorithm.

However, there is an Edit button, which I can click and which leads me to the algorithm editing page. Nevertheless, when I try to Save the algorithm, I get the error message:

Algorithm not created, please fix the errors below

{"detail":"The algorithm isn't modifiable anymore (either shared with someone else, or needed by an attestation)"}

So, it seems that the algorithm knows that it is not modifiable, but still the Edit button exists.