Index: TortoiseProc/RevisionGraph/SearchPathTree.cpp
===================================================================
--- TortoiseProc/RevisionGraph/SearchPathTree.cpp	(revision 18099)
+++ TortoiseProc/RevisionGraph/SearchPathTree.cpp	(working copy)
@@ -148,6 +148,9 @@
 
 CSearchPathTree::~CSearchPathTree()
 {
+	// When 'delete' is called it triggers the destructor of some CSearchPathTree
+	// object and this possibly leads to DeLink() being called which in turn
+	// can modify 'firstChild' pointers.
 	while (firstChild != NULL)
 		delete firstChild;