Anki插件开发：添加卡后出现运行时死机错误

Question

在上下文中，我正在尝试修补完形填空重叠插件，以便它能在Anki 2.1.28+上工作。这是我尝试的修复方法。本质上，我已尝试将有关刷新卡的部分改编为新API（即，将其放入if else语句+使用add_card钩子在添加时生成id），而在使用note.flush之前，它始终：

    def updateNote(self, fields, full, setopts, custom):
        """Write changes to note"""
        note = self.note
        options = setopts[1]
        for idx, field in enumerate(fields):
            name = self.flds["tx"] + str(idx+1)
            if name not in note:
                print("Missing field. Should never happen.")
                continue
            note[name] = field if custom else self.processField(field)

        if options[3]:  # no full clozes
            full = ""
        else:
            full = full if custom else self.processField(full)
        note[self.flds["fl"]] = full
        note[self.flds["st"]] = createNoteSettings(setopts)
        if note.id == 0:
            ncol = note.col
            note.id = ncol.backend.add_note(note=note.to_backend_note(), deck_id=ncol.conf["curDeck"])
        else:
            note.flush()

然而，这似乎在Rust后端中产生了一个错误，原因我无法理解：

Error 
An error occurred. Please start Anki while holding down the shift key, which will temporarily disable the add-ons you have installed. 
If the issue only occurs when add-ons are enabled, please use the Tools>Add-ons menu item to disable some add-ons and restart Anki, repeat until you discover the add-on that is causing the problem. 
When you've discovered the add-on that is causing the problem, please report the issue on the add-ons section of our support site. 
Debug info:
Anki 2.1.35 (84dcaa86) Python 3.8.0 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=True sv=?
Add-ons, last update check: 2020-12-10 23:21:47

Caught exception:
Traceback (most recent call last):
  File "aqt\webview.py", line 493, in handler
  File "aqt\editor.py", line 483, in <lambda>
  File "<C:\Program Files\Anki\decorator.pyc:decorator-gen-110>", line 2, in _addCards
  File "anki\hooks.py", line 638, in decorator_wrapper
  File "anki\hooks.py", line 635, in repl
  File "C:\Users\camin\AppData\Roaming\Anki2\addons21\cloze_overlapper\editor.py", line 308, in onAddCards
    oldret = _old(self)
  File "aqt\addcards.py", line 191, in _addCards
  File "<C:\Program Files\Anki\decorator.pyc:decorator-gen-108>", line 2, in addNote
  File "anki\hooks.py", line 638, in decorator_wrapper
  File "anki\hooks.py", line 635, in repl
  File "C:\Users\camin\AppData\Roaming\Anki2\addons21\cloze_overlapper\editor.py", line 343, in onAddNote
    note = _old(addcards, note)
  File "aqt\addcards.py", line 178, in addNote
  File "anki\collection.py", line 345, in add_note
  File "anki\rsbackend_gen.py", line 339, in add_note
  File "anki\rsbackend.py", line 262, in _run_command
pyo3_runtime.PanicException: assertion failed: note.id.0 == 0

Caught exception:
Traceback (most recent call last):
  File "aqt\webview.py", line 493, in handler
  File "C:\Users\camin\AppData\Roaming\Anki2\addons21\516643804\main.py", line 93, in oncallback
    self.checkValid()
  File "aqt\editor.py", line 487, in checkValid
  File "anki\notes.py", line 150, in dupeOrEmpty
  File "anki\rsbackend_gen.py", line 404, in note_is_duplicate_or_empty
  File "anki\rsbackend.py", line 262, in _run_command
pyo3_runtime.PanicException: called `Result::unwrap()` on an `Err` value: "PoisonError { inner: .. }"

这是怎么回事？我所做的更改如何导致后端出现问题