fix(discord): avoid false model picker mismatch warning (#39105)

Land #39105 by @akropp.

Co-authored-by: Adam Kropp <adam@thekropp.com>

CHANGELOG.md

@@ -259,6 +259,7 @@ Docs: https://docs.openclaw.ai
 - Models/merge mode provider precedence: when `models.mode: "merge"` is active and config explicitly sets a provider `baseUrl`, keep config as source of truth instead of preserving stale runtime `models.json` `baseUrl` values; includes normalized provider-key coverage. (#39103) Thanks @BigUncle.
 - UI/Control chat tool streaming: render tool events live in webchat without requiring refresh by enabling `tool-events` capability, fixing stream/event correlation, and resetting/reloading stream state around tool results and terminal events. (#39104) Thanks @jakepresent.
 - Models/provider apiKey persistence hardening: when a provider `apiKey` value equals a known provider env var value, persist the canonical env var name into `models.json` instead of resolved plaintext secrets. (#38889) Thanks @gambletan.
+- Discord/model picker persistence check: add a short post-dispatch settle delay before reading back session model state so picker confirmations stop reporting false mismatch warnings after successful model switches. (#39105) Thanks @akropp.
 
 ## 2026.3.2
 

src/discord/monitor/native-command.ts

@@ -937,6 +937,11 @@ async function handleDiscordModelPickerInteraction(
       return;
     }
 
+    // The session store write happens asynchronously after the command dispatch
+    // completes. Give it a short window to flush before reading back the persisted
+    // value, otherwise the check races the write and reports a false mismatch.
+    await new Promise((resolve) => setTimeout(resolve, 250));
+
     const effectiveModelRef = resolveDiscordModelPickerCurrentModel({
       cfg: ctx.cfg,
       route,