From 3bc53cef60aba9856753048e66ea2e572a904177 Mon Sep 17 00:00:00 2001
From: itsmattkc <34096995+itsmattkc@users.noreply.github.com>
Date: Wed, 22 Feb 2023 12:50:56 -0800
Subject: [PATCH] nodegroup: check if an input is actually a passthrough

Fixes #2135
---
 app/node/group/group.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/node/group/group.cpp b/app/node/group/group.cpp
index 9ca495e1f..d4afec050 100644
--- a/app/node/group/group.cpp
+++ b/app/node/group/group.cpp
@@ -160,6 +160,10 @@ bool NodeGroup::GetInner(NodeInput *input)
 {
   if (NodeGroup *g = dynamic_cast<NodeGroup*>(input->node())) {
     const NodeInput &passthrough = g->GetInputFromID(input->input());
+    if (!passthrough.IsValid()) {
+      return false;
+    }
+
     input->set_node(passthrough.node());
     input->set_input(passthrough.input());
     return true;