The OpenML server has a URL size limit, which prevents us from doing listing calls with too many filters. For example, when I want to filter on 1000 task id's it is likely that the call will fail. It would be great if we can somehow automatically detect and catch this in the list all function. However, this is a though problem, as sometimes there are multiple filters (e.g., per task and per setup)

Extending this limit is not a legitimate fix, as the problem will re-occur when using bigger filters.