From 99eeaf27b64e6221739b3adcd61ba4fc8a765e20 Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@gmail.com>
Date: Fri, 26 Feb 2016 22:28:06 -0500
Subject: [PATCH] Don't forget the self-assignment check!

---
 src/Track.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Track.cpp b/src/Track.cpp
index a559fc82a..3f4dc5e14 100644
--- a/src/Track.cpp
+++ b/src/Track.cpp
@@ -720,8 +720,10 @@ TrackList::TrackList(const TrackList &that)
 
 TrackList& TrackList::operator= (const TrackList &that)
 {
-   this->Clear(mDestructorDeletesTracks);
-   DoAssign(that);
+   if (this != &that) {
+      this->Clear(mDestructorDeletesTracks);
+      DoAssign(that);
+   }
    return *this;
 }