fix(FindImageFromCluster): update context with inferred regions (#3508)

* fix(FindImageFromCluster): update context with inferred regions

* fix(FindImageFromCluster): update context with inferred regions

Update orca-clouddriver/src/main/groovy/com/netflix/spinnaker/orca/clouddriver/tasks/cluster/FindImageFromClusterTask.groovy

Co-Authored-By: Mark Vulfson <markvu@live.com>

Co-authored-by: Mark Vulfson <markvu@live.com>

orca-clouddriver/src/main/groovy/com/netflix/spinnaker/orca/clouddriver/tasks/cluster/FindImageFromClusterTask.groovy

@@ -294,11 +294,16 @@ class FindImageFromClusterTask extends AbstractCloudProviderAwareTask implements
       return artifact
     }.flatten()
 
-    return TaskResult.builder(ExecutionStatus.SUCCEEDED).context([
-      amiDetails: deploymentDetails,
-      artifacts: artifacts
-    ]).outputs([
-      deploymentDetails: deploymentDetails
+    // When additional regions are inferred for downstream deploy stages, adding them back
+    // to Stage.context.regions enables direct use via DeploymentDetailsAware.withImageFromPrecedingStage()
+    // instead of via a subsequent code path that may exhibit different behavior.
+    Map<String, Object> context = [amiDetails: deploymentDetails, artifacts: artifacts]
+    context.put("regions", config.regions + inferredRegions)
+    return TaskResult.builder(ExecutionStatus.SUCCEEDED).context(
+      context
+    ).outputs([
+      deploymentDetails: deploymentDetails,
+      inferredRegions: inferredRegions
     ]).build()
   }