I have a job interview today. I have a current job which is fine but upward movement seems vague at best so I started looking into other options.
I just found out this morning from a co-worker that her boss was asked to help this new company with the job interviews

I am 100% sure he is helping with the interviews for the position I have an interview for.
I used to work in his group before he had the job, and still interact with him a lot since my current job requires me to do so. I don't know him very well but isn't this a huge conflict of interest??
What should I do here? I know I have every right to interview with whoever I want, but this seems like a very sticky situation.