Possible bug, function does not work as intended

I am calling the function detach_from_suite to remove a task (211981) from a benchmark suite (240) that was created by me. The server returns a status code of 200, however, the task is not removed from the benchmark suite and the size of the benchmark suite stays the same.

I used the REST API at the website and I got the same results and status code. The size of the benchmark suite does not seem to change. Not sure if I am doing something wrong, or there is a problem with the function. Probably this is not the right place for the issue, as it seems to be server sided, however, I am posting it here initially as it happened while using the connector.

https://github.com/openml/openml-python/blob/249abc901c34bc87c4b283e42e754308a5a2d629/openml/study/functions.py#L380

Code:

import openml


suite_id = 240
task_id = 211981
new_suite_size = openml.study.functions.detach_from_suite(suite_id, [task_id])
print(new_suite_size)

Start in openml/study/functions.py at the linked detach_from_suite implementation, then reproduce the request with suite 240 and task 211981 through both the connector and REST API. Done means determining whether the task is removed and the suite size changes, or documenting the server-side behavior if the connector is sending the expected request.