v3.9.1: Fix Gemini stream hang when model returns only function calls

translate-proxy.py

@@ -4496,8 +4496,8 @@ class Handler(http.server.BaseHTTPRequestHandler):
                         current_tool_calls[call_id] = fc
                         output_items.append({"tool": True})
                 last_finish = candidates[0].get("finishReason", "")
-                if OAUTH_PROVIDER == "google-antigravity" and full_text and last_finish:
-                    if last_finish == "MAX_TOKENS" and not current_tool_calls:
+                if last_finish:
+                    if OAUTH_PROVIDER == "google-antigravity" and last_finish == "MAX_TOKENS" and full_text and not current_tool_calls:
                         print(f"[{self._session_id}] MAX_TOKENS hit ({len(full_text)} chars), auto-continuing...", file=sys.stderr)
                         break
                     stream_finished = True