That's bizarre, because they even recreated that flub in "The People vs. OJ Simpson". Not sure what kind of video would edit that out.
A cast recording, however, is another matter. Just like a typo in a novel being corrected in future printings, I could see them fixing a mistake. I can't for the life of me hear the "d" on Adam Pascal's "I have always loved you" in Your Eyes, but I'm not sure if they ever fixed that.