In the Algorithm, the model_fusion_function is ignored

While the constructor of the Algorithm class has two parameters dealing with score fusion: https://gitlab.idiap.ch/bob/bob.bio.base/-/blob/a43b31fd50acc27540ee29924357b8e2301bbe47/bob/bio/base/algorithm/Algorithm.py#L83, one of them is ignored. In score_for_multiple_models the model_fusion_function should b used, but instead the probe_fusion_function is used: https://gitlab.idiap.ch/bob/bob.bio.base/-/blob/a43b31fd50acc27540ee29924357b8e2301bbe47/bob/bio/base/algorithm/Algorithm.py#L218

So far, there is no problem because both have the same default value. But in case someone wants to change only one of them, this is currently not possible.