EbrainsPublicDatasetConnector cannot handle files with identical names

[ch-schiffer]

I just tried to use EbrainsPublicDatasetConnector to retrieve some data from the KG, using the following code:

datasets = set([profile.datasets[1] for profile in siibra.features.cellular.CellDensityProfile.get_instances()])
for dataset in datasets:
    repo = siibra.retrieval.repositories.EbrainsPublicDatasetConnector(dataset.id)
    files = repo.search_files(suffix='.png', recursive=True)
    image_files = [fname for fname in files if "image" in fname]
    images = [repo.get_loader(image).data for image in image_files]

Here, I would expect to get all .png files in the selected dataset that have image in their name.
In each dataset, there are multiple image.png files. However, as EbrainsPublicDatasetConnector uses a dictionary to store the files, it cannot handle multiple files with the same name:

# https://github.com/FZJ-INM1-BDA/siibra-python/blob/main/siibra/retrieval/repositories.py#L571C1-L578C22
@property
def _files(self):
    if self.use_version in self.versions:
        return {
            f["name"]: f["url"] for f in self.versions[self.use_version]["files"]
        }
    else:
        return {}

Hence, it returns only one image.png per dataset. I think this logic needs to be changed to include the full path, so that multiple files with the same name can be properly handled.