From e878b60dbcd3116b7ab6bd456d29228655bcdb00 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Tue, 15 Nov 2016 18:55:23 +0300
Subject: [PATCH] core: drop type/dims/rows/cols information in Mat::release()

---
 modules/core/include/opencv2/core/mat.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/modules/core/include/opencv2/core/mat.hpp b/modules/core/include/opencv2/core/mat.hpp
index 631c698081..bebe2262b2 100644
--- a/modules/core/include/opencv2/core/mat.hpp
+++ b/modules/core/include/opencv2/core/mat.hpp
@@ -368,6 +368,16 @@ inline void Mat::release()
     data = datastart = dataend = datalimit = 0;
     for(int i = 0; i < dims; i++)
         size.p[i] = 0;
+#ifdef _DEBUG
+    flags = MAGIC_VAL;
+    dims = rows = cols = 0;
+    if (step.p != step.buf)
+    {
+        fastFree(step.p);
+        step.p = step.buf;
+        size.p = &rows;
+    }
+#endif
     refcount = 0;
 }