fix the iterator use in the copy constructors

git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libmatroska@38 a6f86f6d-0131-4f8e-9e7b-e335508773d5

src/KaxCluster.cpp

@@ -87,6 +87,7 @@ KaxCluster::KaxCluster(const KaxCluster & ElementToClone)
 			static_cast<KaxBlockVirtual *>(*Itr)->SetParent(*this);
 #endif // MATROSKA_VERSION
 		}
+        ++Itr;
 	}
 }
 

src/KaxSegment.cpp

@@ -89,6 +89,7 @@ KaxSegment::KaxSegment(const KaxSegment & ElementToClone)
 		if (EbmlId(**Itr) == EBML_ID(KaxCluster)) {
 			static_cast<KaxCluster *>(*Itr)->SetParent(*this);
 		}
+        ++Itr;
 	}
 }