fix(telegram): fall back on ambiguous first preview sends

CHANGELOG.md

@@ -91,7 +91,7 @@ Docs: https://docs.openclaw.ai
 - Commands/config writes: enforce `configWrites` against both the originating account and the targeted account scope for `/config` and config-backed `/allowlist` edits, blocking sibling-account mutations while preserving gateway `operator.admin` flows. Thanks @tdjackey for reporting.
 - Security/system.run: fail closed for approval-backed interpreter/runtime commands when OpenClaw cannot bind exactly one concrete local file operand, while extending best-effort direct-file binding to additional runtime forms. Thanks @tdjackey for reporting.
 - Gateway/session reset auth: split conversation `/new` and `/reset` handling away from the admin-only `sessions.reset` control-plane RPC so write-scoped gateway callers can no longer reach the privileged reset path through `agent`. Thanks @tdjackey for reporting.
-- Telegram/final preview delivery followup: keep ambiguous first preview sends without a returned `message_id` instead of falling back to a second final send, so slow-provider Telegram replies stop duplicating on the first preview-final seam. (#41932) thanks @hougangdev.
+- Telegram/final preview delivery followup: keep ambiguous missing-`message_id` finals only when a preview was already visible, while first-preview/no-id cases still fall back so Telegram users do not lose the final reply. (#41932) thanks @hougangdev.
 
 ## 2026.3.8
 

src/telegram/lane-delivery-text-deliverer.ts

@@ -365,13 +365,6 @@ export function createLaneTextDeliverer(params: CreateLaneTextDelivererParams) {
         context,
       });
       if (typeof previewTargetAfterStop.previewMessageId !== "number") {
-        if (lane.stream?.sendMayHaveLanded?.()) {
-          params.log(
-            `telegram: ${laneName} first preview send may have landed despite missing message id; keeping to avoid duplicate`,
-          );
-          params.markDelivered();
-          return "retained";
-        }
         return "fallback";
       }
       return finalizePreview(previewTargetAfterStop.previewMessageId, true, false);

src/telegram/lane-delivery.test.ts

@@ -538,7 +538,7 @@ describe("createLaneTextDeliverer", () => {
     );
   });
 
-  it("retains when the first preview send may have landed without a message id", async () => {
+  it("falls back when the first preview send may have landed without a message id", async () => {
     const stream = createTestDraftStream();
     stream.sendMayHaveLanded.mockReturnValue(true);
     const harness = createHarness({ answerStream: stream });
@@ -550,10 +550,9 @@ describe("createLaneTextDeliverer", () => {
       infoKind: "final",
     });
 
-    expect(result).toBe("preview-retained");
-    expect(harness.sendPayload).not.toHaveBeenCalled();
-    expect(harness.log).toHaveBeenCalledWith(
-      expect.stringContaining("first preview send may have landed despite missing message id"),
+    expect(result).toBe("sent");
+    expect(harness.sendPayload).toHaveBeenCalledWith(
+      expect.objectContaining({ text: "Hello final" }),
     );
   });