listdir returns empty list on Azure storage if no trailing slash on directory path

[maribedran]

I ran into an issue trying to list files from a directory that only happens with Azure storage. The code below works both with FileSystemStorage and S3Boto3Storage, but on Azure the files list is empty. It's only able to list the files when I add a trailing slash to the directory _, old_files = default_storage.listdir(f"{RecordsDownloader.DOWNLOAD_DIR}/").

_, old_files = default_storage.listdir(RecordsDownloader.DOWNLOAD_DIR)
for name in old_files:
    path = f"{RecordsDownloader.DOWNLOAD_DIR}/{name}"
    default_storage.delete(path)

azure-common==1.1.27
azure-storage-blob==2.1.0
azure-storage-common==2.1.0
boto3==1.23.5
botocore==1.26.5
Django==3.2.3
django-storages==1.11.1