openclaw - 💡(How to fix) Fix Active memory crashes on Telegram forum topic sessions (dirName validation) [1 pull requests]

Bug

Active memory plugin fails on Telegram forum (topic-based) group sessions with:

active-memory: agent=main session=agent:main:telegram:group:-1003803644436:topic:35526 start
lane task error: "Bundled plugin dirName must be a single directory: -1003803644436:topic:35526"
active-memory: agent=main session=... failed error=Bundled plugin dirName must be a single directory

Cause

The active-memory sub-agent session key includes the Telegram forum session key which contains colons (-1003803644436:topic:35526). The plugin's directory name validation rejects this because colons are path separators.

Repro

1. Enable active memory for group chats: allowedChatTypes: ["direct", "group"]
2. Send a message in a Telegram forum topic (supergroup with topics enabled)
3. Active memory starts but crashes immediately

Impact

Active memory works in DMs and non-forum Telegram groups but fails on ALL Telegram forum topic messages. This blocks active memory for any agent using Telegram forum supergroups.

Environment

• OpenClaw 2026.5.2 (8b2a6e5)
• macOS arm64
• Telegram channel with forum/topics enabled
• persistTranscripts: false (uses temp dir, still crashes — the error is in sub-agent session key → dirName conversion, not transcript path)

Expected

Session keys with colons should be sanitized before being used as filesystem directory names in the plugin runtime.