fix cfn security group read (#12414)

cloutierMat · web-flow · commit 310acf4d16b2 · 2025-03-20T13:28:24.000+01:00
diff --git a/localstack-core/localstack/services/ec2/resource_providers/aws_ec2_securitygroup.py b/localstack-core/localstack/services/ec2/resource_providers/aws_ec2_securitygroup.py
@@ -65,8 +65,9 @@ def model_from_description(sg_description: dict) -> dict:
         "GroupDescription": sg_description.get("Description"),
         "SecurityGroupEgress": [],
         "SecurityGroupIngress": [],
-        "Tags": sg_description.get("Tags", []),
     }
+    if tags := sg_description.get("Tags"):
+        model["Tags"] = tags
 
     for i, egress in enumerate(sg_description.get("IpPermissionsEgress", [])):
         for ip_range in egress.get("IpRanges", []):
