The save method in the directories is not working

[srik-git]

The create method is working but not the save method. Is it a known issue or am I not calling it correctly?
This code does not work second time as first time an entry is created:
dir = self.nuxeo.directories.get(dir_name)
entry = DirectoryEntry(properties={'id': id,'label': label, 'ordering': ordering, 'obselete': obselete})
if not dir.exists(id):
print('Entry does not exist')
dir.create(entry)
return
else:
print('Entry exists')
dir.save(entry)
return
The entry's id is the same but label changed. It fails with the stack trace:
True
Entry exists
Traceback (most recent call last):
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\nuxeo\client.py", line 311, in request
resp.raise_for_status()
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\requests\models.py", line 1021, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: for url: http://dualstack.a14a3bc794cb248649aa88fb0071cfa2-593430633.us-east-2.elb.amazonaws.com/nuxeo/api/v1/directory/OfficeCodes/sri

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "d:\sri\contrib\code\python\nuxeo_vocab.py", line 49, in
exit(main())
^^^^^^
File "d:\sri\contrib\code\python\nuxeo_vocab.py", line 44, in main
nux_manager.save_entry('OfficeCodes', 'sri', 'sri')
File "d:\sri\contrib\code\python\nuxeo_vocab.py", line 20, in save_entry
dir.save(entry)
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\nuxeo\models.py", line 434, in save
return self.service.put(entry, dir_name=self.uid)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\nuxeo\directories.py", line 69, in put
return super().put(resource, path=path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\nuxeo\endpoint.py", line 138, in put
response = self.client.request(
^^^^^^^^^^^^^^^^^^^^
File "D:\sri\contrib\env\venv\dvenv\Lib\site-packages\nuxeo\client.py", line 314, in request
raise self._handle_error(exc)
nuxeo.exceptions.HTTPError: HTTPError(500), error: 'Internal Server Error', server trace: None
PS D:\sri\contrib\env\venv\dvenv>

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