Revert "QgsGeometry to datastream -> avoid extra data copy"

This reverts commit c1b512f.

Author: m-kuhn

src/core/geometry/qgsgeometry.cpp

@@ -2292,6 +2292,8 @@ QDataStream& operator>>( QDataStream& in, QgsGeometry& geometry )
     return in;
   }
 
-  geometry.fromWkb( reinterpret_cast<unsigned char*>( byteArray.data() ), byteArray.size() );
+  char *data = new char[byteArray.size()];
+  memcpy( data, byteArray.data(), byteArray.size() );
+  geometry.fromWkb( reinterpret_cast< unsigned char* >( data ), byteArray.size() );
   return in;
 }