From bc82676d93b91404760da29ee496fbce41e99b31 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E7=9B=90=E7=B2=92=20Yanli?= Date: Wed, 25 Mar 2026 19:29:05 +0800 Subject: [PATCH] Update api/dify_graph/nodes/loop/loop_node.py Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --- api/dify_graph/nodes/loop/loop_node.py | 3 +++ 1 file changed, 3 insertions(+) diff --git a/api/dify_graph/nodes/loop/loop_node.py b/api/dify_graph/nodes/loop/loop_node.py index 363f902f82..4d84892329 100644 --- a/api/dify_graph/nodes/loop/loop_node.py +++ b/api/dify_graph/nodes/loop/loop_node.py @@ -410,6 +410,9 @@ class LoopNode(LLMUsageTrackingMixin, Node[LoopNodeData]): # configs still serialize array constants as JSON strings. if isinstance(original_value, str): value = json.loads(original_value) if original_value else [] + elif original_value is None: + # Preserve legacy behavior: treat missing/empty array constants as []. + value = [] else: value = original_value else: