As I said, any visa officer's going to be looking at a whole variety of factors when they look at an application. If someone has claimed refugee status in Canada before, obviously that's going to be an issue they would be looking at very closely to discern the circumstances of that. Is that going to result in an automatic refusal? No. They're going to be looking at that piece of information in the context of the broader picture of the applicant's application.
On June 4th, 2013. See this statement in context.