From 8c735ed6aeac25e06f68905218e94b7999432d0d Mon Sep 17 00:00:00 2001
From: David Rowe <david@ctrlaltstudio.com>
Date: Wed, 28 Aug 2019 16:32:52 +1200
Subject: [PATCH] Fix ScriptDiscoveryService.scriptsModel.parent() crash for
 invalid index

---
 libraries/script-engine/src/ScriptsModel.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/script-engine/src/ScriptsModel.cpp b/libraries/script-engine/src/ScriptsModel.cpp
index 233229f2eb..429c7f5518 100644
--- a/libraries/script-engine/src/ScriptsModel.cpp
+++ b/libraries/script-engine/src/ScriptsModel.cpp
@@ -85,6 +85,9 @@ QModelIndex ScriptsModel::index(int row, int column, const QModelIndex& parent)
 }
 
 QModelIndex ScriptsModel::parent(const QModelIndex& child) const {
+    if (!child.isValid()) {
+        return QModelIndex();
+    }
     TreeNodeFolder* parent = (static_cast<TreeNodeBase*>(child.internalPointer()))->getParent();
     if (!parent) {
         return QModelIndex();