Telegram 入站媒体失败修复：自动 IPv4 fallback 重试（PR #45327）

问题/场景：IPv6 异常主机上文本可收发，但 Telegram 文件下载失败。前置条件：已启用 Telegram 并处理入站媒体。实施步骤：1) 升级到 PR #45327；2) 发送图片/文档复测；3) 观察下载失败后自动 IPv4-only 重试；4) 验证媒体流程恢复。关键命令：openclaw gateway status、journalctl。验证：媒体可成功处理，不再持续 fetch failed。风险与边界：若 IPv4/代理同样不可达仍会失败（需验证）。来源归因：GitHub PR #45327。

GITHUBDiscovered 2026-03-14Author openclaw contributors

Prerequisites

Telegram inbound media pipeline is enabled.

Steps

Upgrade to build containing PR #45327.
Send test media to bot on an IPv6-problem host.
Confirm one IPv4 fallback retry is attempted on classified failures.

Commands

openclaw gateway status

journalctl -u openclaw-gateway -n 200 --no-pager

Verify

Inbound Telegram media succeeds after fallback retry.

Caveats

This fix targets Telegram media download classification path only（需验证）.

Source attribution

This tip is aggregated from community/public sources and preserved with attribution.

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