It should've been cancelled by US officials during background and security screening, since his claim was already referred to IRB, and was not "discontinued".
Is there any way to check? I understand my situation but I visited the US before travelling to Canada. I was back in my country from the US. And after 1 year I fled to Canada. So, by claiming Asylum in Canada did I violate any rules or conditions with my US TRV? Or there are any kind of rule that If I claim asylum anywhere in the world will revoked my all previously received visas will be cancelled/revoked automatically?
Today I read an article about my situation. Where you commented maybe differently. I will post here if I can find that. Thanks anyway.