[aseprite] 13/64: Add a little check in DocumentApi::copyCel() in release mode

[Tobias Hansen]

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thansen pushed a commit to branch master
in repository aseprite.

commit 036cb8b5234bead0f479b87eb1c3d81a0f5edf94
Author: David Capello <davidcapello at gmail.com>
Date:   Mon May 9 15:45:59 2016 -0300

    Add a little check in DocumentApi::copyCel() in release mode
---
 src/app/document_api.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/app/document_api.cpp b/src/app/document_api.cpp
index 0be9db2..0d617da 100644
--- a/src/app/document_api.cpp
+++ b/src/app/document_api.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 2 as
@@ -368,6 +368,10 @@ void DocumentApi::copyCel(
   LayerImage* dstLayer, frame_t dstFrame, bool continuous)
 {
   ASSERT(srcLayer != dstLayer || srcFrame != dstFrame);
+
+  if (srcLayer == dstLayer && srcFrame == dstFrame)
+    return;                     // Nothing to be done
+
   m_transaction.execute(
     new cmd::CopyCel(
       srcLayer, srcFrame,

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