Default event ID to 0 if not present in query params

dandavison · dandavison · commit 4ef86e8f8a64 · 2025-07-09T19:12:53.000-04:00
diff --git a/temporalio/nexus/_operation_context.py b/temporalio/nexus/_operation_context.py
@@ -580,7 +580,7 @@ def _event_reference_from_query_params(
         raise ValueError(f"Invalid event type name: {raw_event_type_name}")
 
     # event id
-    event_id = 1
+    event_id = 0
     [raw_event_id] = query_params.get(LINK_EVENT_ID_PARAM_NAME) or [None]
     if raw_event_id:
         try:
