WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy has no fields — dismissed_by user data silently dropped

[donicrosby]

Description

The generated model WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy (in githubkit/versions/v2022_11_28/models/) is an empty Pydantic model with zero fields:

class WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy(GitHubModel):
    """WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy"""

Because GitHubModel uses Pydantic v2's default extra="ignore", when GitHub sends a full user object ({"login": "octocat", "id": 1, ...}) as dismissed_by, all fields are silently dropped. The model instantiates successfully but contains no data. Any subsequent access to .login raises AttributeError.

The dismissed_by field on WebhookCodeScanningAlertReopenedPropAlert is typed as:

dismissed_by: Union[WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy, None]

Every other action variant's DismissedBy type has the full simple-user schema (login, id, avatar_url, etc.) — only reopened has this empty model.

Expected

WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy should have the same fields as the other action variants (e.g. WebhookCodeScanningAlertAppearedInBranchPropAlertPropDismissedBy), which correctly reference the simple-user schema.

Alternatively, dismissed_by on WebhookCodeScanningAlertReopenedPropAlert could directly reference a shared user type rather than a dedicated empty model.

Error

AttributeError: 'WebhookCodeScanningAlertReopenedPropAlertPropDismissedBy' object has no attribute 'login'

Triggered at runtime when accessing alert.dismissed_by.login after a code_scanning_alert reopened webhook fires for a previously-dismissed alert.

Root Cause

This is an upstream issue in the GitHub REST API OpenAPI description. The webhook schema for code_scanning_alert (action reopened) defines dismissed_by as an empty object {} with no properties instead of referencing simple-user. I've filed a Schema Inaccuracy issue upstream: github/rest-api-description#6090

Workaround

A runtime monkey-patch can be applied before any webhook parsing occurs, following the same pattern as #275 and #279:

from typing import Union

from githubkit.versions.latest.models import (
    WebhookCodeScanningAlertAppearedInBranchPropAlertPropDismissedBy,
    WebhookCodeScanningAlertReopened,
    WebhookCodeScanningAlertReopenedPropAlert,
)

_DISMISSED_BY_TYPE = Union[WebhookCodeScanningAlertAppearedInBranchPropAlertPropDismissedBy, None]
WebhookCodeScanningAlertReopenedPropAlert.__annotations__["dismissed_by"] = _DISMISSED_BY_TYPE
WebhookCodeScanningAlertReopenedPropAlert.model_fields["dismissed_by"].annotation = _DISMISSED_BY_TYPE
WebhookCodeScanningAlertReopenedPropAlert.model_rebuild(force=True)
WebhookCodeScanningAlertReopened.model_rebuild(force=True)

Note: both __annotations__ and model_fields must be patched because the source uses from __future__ import annotations, so model_rebuild re-resolves from the string annotation. The parent model must also be rebuilt so its compiled Pydantic-core validator picks up the new child schema.

Environment

• githubkit version: 0.14.6
• Python: 3.12
• Pydantic: v2