From 9f0be8cd5f90b6b471f7e19c393af14377b1dc0b Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 20 Jul 2018 19:16:36 +0200
Subject: make new context work again

---
 gui/designwidget.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gui/designwidget.cc b/gui/designwidget.cc
index d28b843b..f7ae82f5 100644
--- a/gui/designwidget.cc
+++ b/gui/designwidget.cc
@@ -230,6 +230,9 @@ void DesignWidget::addToHistory(QTreeWidgetItem *item)
 void DesignWidget::newContext(Context *ctx)
 {
     treeWidget->clear();
+    // reset pointers since they are not valid after clear
+    nets_root = nullptr;
+    cells_root = nullptr;
     history_ignore = false;
     history_index = -1;
     history.clear();
-- 
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