Known bug, fixed in next version. And you can change the name of the thread, within a few minutes of creating it. After that, you need to ask me to change it. They put this limit in to avoid confusion later on.
I understand the confusion part, but rather than within a few minutes, do you think you can make it to be within say, 2 replies? As the thread I linked to shows, sometimes you don’t realize you should change the thread title until someone tells you.