Files and with trailing slash can't be queried for info()

[isidentical]

import secrets
from adlfs import AzureBlobFileSystem
from pprint import pprint

BUCKET = "/name/of/the/bucket"
BASE_PATH = BUCKET + "/" + secrets.token_hex(12)
EMPTY_DIR = BASE_PATH + "/empty_dir/"

fs = AzureBlobFileSystem(account_name=_NAME, account_key=_KEY)

fs.makedirs(BASE_PATH)
fs.touch(EMPTY_DIR)

assert fs.exists(EMPTY_DIR)
print("isdir()?", fs.isdir(EMPTY_DIR))
print("isfile()?", fs.isfile(EMPTY_DIR))
print(fs.info(EMPTY_DIR))

The code above simply sums it up. If we create a file that ends with a trailing slash and has no contents in it, it is considered as a file in other prefix based storage implementations (eg s3fs) though here it is neither a file nor a directory. Also .info() just claims file doesn't exist.

 $ python t.py
isdir()? False
isfile()? False
Traceback (most recent call last):
  File "t.py", line 16, in <module>
    print(fs.info(EMPTY_DIR))
  File "/home/isidentical/adlfs/adlfs/spec.py", line 534, in info
    fetch_from_azure = (path and self._ls_from_cache(path) is None) or refresh
  File "/home/isidentical/.venv38/lib/python3.8/site-packages/fsspec/spec.py", line 346, in _ls_from_cache
    raise FileNotFoundError(path)
FileNotFoundError: /test7/foo/1e853243700bd75ca6d3d194/empty_dir/

[isidentical]

Another inconsistency is;

print(fs.ls(BASE_PATH, detail=True))

would yield

[{'name': 'test7/foo/d9f36db25c2af114901d3f55/empty_dir/', 'size': 0, 'type': 'directory'}]

though querying EMPTY_DIR (fs.ls(EMPTY_DIR, detail=True) would result with a FileNotFoundError.

[isidentical]

If we remove the trailing slash

EMPTY_DIR = BASE_PATH + "/empty_dir"

assert fs.exists(EMPTY_DIR)
print("isdir()?", fs.isdir(EMPTY_DIR))
print("isfile()?", fs.isfile(EMPTY_DIR))
print(fs.info(BASE_PATH, detail=True))
print(fs.info(BASE_PATH, detail=True))

isdir()? False
isfile()? True
{'name': 'test7/foo/c0bb7461677c0d3e929d7301/', 'size': 0, 'type': 'directory'}
Traceback (most recent call last):
  File "t.py", line 20, in <module>
    print(fs.info(BASE_PATH, detail=True))
  File "/home/isidentical/adlfs/adlfs/spec.py", line 534, in info
    fetch_from_azure = (path and self._ls_from_cache(path) is None) or refresh
  File "/home/isidentical/.venv38/lib/python3.8/site-packages/fsspec/spec.py", line 346, in _ls_from_cache
    raise FileNotFoundError(path)
FileNotFoundError: /test7/foo/c0bb7461677c0d3e929d7301