missing labeland name when PATCHing blocks in Web UI

[luginbash]

Describe the bug

1. letta serve
2. goto http://localhost:8283/human-templates
3. edit any one, say basic, and click "Update Persona"
4. Server says 500
5. Inspect element tells the request was:

   PATCH http://localhost:8283/v1/blocks/block-89a23b4f-86ba-4956-925c-c25c7faddecb
   {"id":"block-89a23b4f-86ba-4956-925c-c25c7faddecb","value":"First name: Chad\nLast name: ?"}
   

6. Server side error is a bit more cryptic:

File "/Users/lug/src/waifugpt/.venv/lib/python3.12/site-packages/letta/schemas/block.py", line 53, in __setattr__
    super().__setattr__(name, value)
    File "/Users/lug/src/waifugpt/.venv/lib/python3.12/site-packages/pydantic/main.py", line 881, in __setattr__
    self.__pydantic_validator__.validate_assignment(self, name, value)
  File "/Users/lug/src/waifugpt/.venv/lib/python3.12/site-packages/letta/schemas/block.py", line 39, in verify_char_limit
    raise e
  File "/Users/lug/src/waifugpt/.venv/lib/python3.12/site-packages/letta/schemas/block.py", line 34, in verify_char_limit
    assert len(self) <= self.limit
           ^^^^^^^^^
    RecursionError: maximum recursion depth exceeded

7. put a breakpoint there inside block.py::BaseBlock and resubmit, seems like when UpdateBlock tried to run updates, super().setattr() did some pydantic thing call the validators: ensure_label(), which did self.label = self.name.
8. review the PATCH body back in step 5, it did not provide anything like name nor label. So label is still None. So I was stuck in a loop.
9. manually edit the requst to include name and resend. Got 200 and the data is updated.

PATCH http://localhost:8283/v1/blocks/block-89a23b4f-86ba-4956-925c-c25c7faddecb
{"id":"block-89a23b4f-86ba-4956-925c-c25c7faddecb","value":"First name: Chad\nLast name: ?", "name": "basic"}
>> (200) {"value":"First name: Chad\nLast name: ?","limit":2000,"name":"basic","template":true,"label":"human","description":null,"metadata_":{},"user_id":"user-00000000","id":"block-89a23b4f-86ba-4956-925c-c25c7faddecb"}

Please describe your setup

• How did you install letta?
  • poetry add letta
• Describe your setup
  • MacOS
  • Shell

[sarahwooders]

Can you try the latest version with pip install letta-nightly ? I think we recently fixed this, but let me know if you are still having issues.

[luginbash]

Sorry for the late reply (busy work week), just tested with letta-gnihtly (0.4.1.dev20241013104006), still facing the same problem.