I am basing this on 20+ years of fab shop experience, so I'm not just guessing. If you had repeated cycles of bending then yes, it would affect the integrity. But bending it once, less than 30 or 40 degrees, then bending it back... you should be fine. But, if you really have any doubt, just replace it and make yourself confident. We can offer advice all day long, but the best advice is to trust your gut feeling!