Internal Server Error -> Space that has CRDT enabled should have crdt

What’s happening

Calling collection.add_row() is blowing up with a 500 from /api/v3/submitTransaction.

requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: https://www.notion.so/api/v3/submitTransaction

Raw response:

{
  "errorId": "07f2cd70-71ec-422e-9b41-4706f4d5a240",
  "name": "CrdtAssertionError",
  "clientData": {
    "type": "unsaved_transactions",
    "errors": [
      {
        "id": "f71a385f-645f-4ad0-9412-78c0394920a1",
        "name": "CrdtAssertionError",
        "retryable": false
      }
    ],
    "untried": []
  },
  "debugMessage": "Unsaved transactions: Space that has CRDT enabled should have crdt blocks",
  "message": "Something went wrong. (500)"
}

Code

from notion.client import NotionClient
from dotenv import load_dotenv
import os

load_dotenv()

client = NotionClient(token_v2=os.getenv("NOTION_TOKEN_A"))

cv_page = client.get_block(os.getenv("NOTION_URL_A"))  # DB page URL
cv = cv_page.collection

row = cv.add_row()
row.title = "Just some data"

What I found

The create_record() method builds an args dict for the set operation but it doesn’t include space_id.
When I add that field, Notion happily generates the CRDT metadata and the call succeeds.

Patch (in client.py, ~line 370):

args = {
    "id": record_id,
    "version": 1,
    "alive": True,
    "created_by_id": self.current_user.id,
    "created_by_table": "notion_user",
    "created_time": now(),
    "parent_id": parent.id,
    "parent_table": parent._table,
    "crdt_format_version": 1,
    "space_id": self.current_space.id,          # ← missing
    "crdt_data": { ... }
}

Does that fix line up with what you’re seeing?
If you can reproduce the 500 and this one-liner solves it, I can send a PR. Let me know what you think!

Start in client.py around line 370, where create_record() builds the set-operation args for collection.add_row(). Reproduce the provided call against /api/v3/submitTransaction and verify that the missing space_id is included and the request no longer returns the reported CrdtAssertionError 500.