Originally Posted by meme
That's what, two jokes in a row?
Try my signature
But could you explain this a bit more:
A lot of publisher ePub have both a real ToC and an internal ToC. The real ToC (a lot of the time) will have an entry for this internal ToC. That is plain stupid. I'm already at the ToC. I have no need or desire to go to the internal ToC. So the entry for the internal ToC gets removed. Thus the renumber will happen.