AutoMapper's Ignore() not working?

I'm trying to ignore a property from my type when performing mapping using AutoMapper. I def开发者_Go百科ine mapping this way:

Mapper.CreateMap<TypeA, TypeA>().ForMember(dest => dest.Id, opt => opt.Ignore());

Both source and destination are the same types. When I call Map function, destination's Id property gets updated anyway. I'm using the latest version downloaded from CodePlex.

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Sorry guys, it was my stupid fault. That's why one should not work at 4 am :(