Apply for a new Chinese Passport to land to Canada

A new PR will land to Canada soon from China. Her current passport will expire soon. So, she would like to apply for a new Chinese passport. However, the GongAnGu told her that Canada did not accept that the old passport, with PR visa, had been cut off a corner of the front cover. Do you think it is true? That is, can she still land to Canada with a new Chinese passport but the PR is on the old passport whose the right top corner of the front page has been cut off? This is her first trip to abroad.