1 files changed, 41 insertions, 0 deletions
diff --git a/user/umbrello/assertion-fix.patch b/user/umbrello/assertion-fix.patch
new file mode 100644
index 000000000..ef86e6546
--- /dev/null
+++ b/user/umbrello/assertion-fix.patch
@@ -0,0 +1,41 @@
+From af72e059f728d70e43ac3ea03653865585818e66 Mon Sep 17 00:00:00 2001
+From: Ralf Habacker <ralf.habacker@freenet.de>
+Date: Fri, 2 Nov 2018 11:38:37 +0100
+Subject: Fix 'Umbrello fails to start due to ASSERT failure in QVector<T>::at
+ "index out of range"'
+
+The backtrace shows that Qt wants to access tree view items that
+have already been deleted. To avoid this, graphical updates are
+disabled when creating the new document.
+
+BUG:400501
+FIXED-IN:2.26.3 (KDE Applications 18.08.3)
+---
+ umbrello/umldoc.cpp | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/umbrello/umldoc.cpp b/umbrello/umldoc.cpp
+index d4099bb..af5c889 100644
+--- a/umbrello/umldoc.cpp
++++ b/umbrello/umldoc.cpp
+@@ -442,6 +442,9 @@ void UMLDoc::closeDocument()
+  */
+ bool UMLDoc::newDocument()
+ {
++    bool state = UMLApp::app()->document()->loading();
++    UMLApp::app()->document()->setLoading(false);
++
+     closeDocument();
+     UMLApp::app()->setCurrentView(0);
+     setUrlUntitled();
+@@ -465,6 +468,7 @@ bool UMLDoc::newDocument()
+     UMLApp::app()->enableUndoAction(false);
+     UMLApp::app()->clearUndoStack();
+ 
++    UMLApp::app()->document()->setLoading(state);
+     return true;
+ }
+ 
+-- 
+cgit v0.11.2
+