Do not emit a link for StartWorkflowRequest if the event reference is null

dandavison · dandavison · commit 3dee7a9138f2 · 2025-07-09T19:58:18.000-04:00
diff --git a/temporalio/nexus/_operation_context.py b/temporalio/nexus/_operation_context.py
@@ -544,7 +544,7 @@ def _nexus_link_to_workflow_event(
         logger.warning(
             f"Failed to parse event reference from Nexus link URL query parameters: {link} ({err})"
         )
-        event_ref = None
+        return None
 
     groups = match.groupdict()
     return temporalio.api.common.v1.Link.WorkflowEvent(

Original file line number	Diff line number	Diff line change
`@@ -544,7 +544,7 @@ def _nexus_link_to_workflow_event(`
`544`	`544`	`logger.warning(`
`545`	`545`	`f"Failed to parse event reference from Nexus link URL query parameters: {link} ({err})"`
`546`	`546`	`)`
`547`		`- event_ref = None`
	`547`	`+ return None`
`548`	`548`
`549`	`549`	`groups = match.groupdict()`
`550`	`550`	`return temporalio.api.common.v1.Link.WorkflowEvent(`