Google Admin API设置projection='full'未返回自定义架构问题排查

我用Python的googleapiclient包编写脚本拉取Google用户数据，因为需要获取自定义架构，在API调用中设置了projection='full'。脚本原本运行正常，无代码变更的情况下，响应突然不再包含自定义架构，效果等同于设置projection='basic'。

服务账号与委派用户的权限未发生变更，使用委派用户登录管理控制台可正常查看和编辑自定义架构，更换其他委派账号结果一致。当前使用Python 3.11.5和google-api-python-client 2.115.0，相关代码如下：

from google.oauth2 import service_account
from googleapiclient.discovery import build

service_account_key = {
        "type": "service_account",
        "project_id": "<project_id>",
        "private_key_id": "<project_key_id>",
        "private_key": "-----BEGIN PRIVATE KEY-----<private_key>-----END PRIVATE KEY-----/n",
        "client_email": "<service_account@project_id.iam.gserviceaccount.com>",
        "client_id": "<client_id>",
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://oauth2.googleapis.com/token",
        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
        "client_x509_cert_url": "<client_x509_cert_url>"
    }

scopes = ['https://www.googleapis.com/auth/admin.directory.user']
delegate = '<user-sa@domain>'
credentials = service_account.Credentials.from_service_account_info(service_account_key, scopes=scopes)
credentials_delegated = credentials.with_subject(delegate)
api_query = 'isSuspended=False'
customer = '<customer>'
max_results = 500
service = build('admin', 'directory_v1', credentials=credentials_delegated, cache_discovery=False)

try:
    response = service.users().list(customer=customer, query=api_query,
                                    maxResults=max_results, projection='full').execute()
    print(response)
except Exception as err:
    print(err)

后续发现：仅在测试时拉取部分分页结果时，自定义架构会消失；拉取全部分页结果时，自定义架构可正常获取。暂未明确分页响应结构导致该问题的具体原因。

内容的提问来源于stack exchange，提问作者Jonathan Saunders