Incorrect error [list-tem] with deque

[snovik75]

Bug Report

Error [list-item] is incorrectly raised. I tried various ways but none of them succeeded to convince mype

To Reproduce

from collections import deque

_table: str = "smth"
_columns: list[str] | None = None

queue: deque[tuple[str, str | None]] = deque(
    (_table, c) for c in _columns or [None]
)

Expected Behavior

No error

Actual Behavior

mypy.py:7: error: List item 0 has incompatible type
"None"; expected "str" [list-item]
(_table, c) for c in (_columns or [None])

Your Environment

• linux ubuntu

• Mypy version used: 1.15

• Mypy command-line flags: None

• Mypy configuration options from mypy.ini (and other config files):
  # mypy
  [tool.mypy]
  python_version = 3.12
  pretty = true
  strict = true
  ignore_missing_imports = true
  warn_redundant_casts = true
  warn_unused_ignores = true
  check_untyped_defs = true # Type-checks the interior of functions without type annotations.
  disable_error_code = ["no-untyped-call", "type-arg", "no-untyped-def", "union-attr"]

      [[tool.mypy.overrides]]
      module = "tests.*"
      ignore_errors = true
  

• Python version used: 3.12

[sterliakov]

Deque is a red herring here, the following reproduces the same issue:

def foo(columns: list[str] | None) -> None:
    bad: list[str] | list[None] = columns or [None]  # E: List item 0 has incompatible type "None"; expected "str"  [list-item]
    good: list[str] | list[None] = [None] or columns or []