In GG 1.0.25, when Plain Text contains several /x...x/ blocks, the normal text following some of the closing x/ wraps after 62 characters, rather than after 72. Once this narrow rewrap begins, it appears to continue until the close of a normal #/ block. But it does not happen after every closing x/. The attached file (.txt and .bin) may be used to demonstrate this.
Anonymous
It looks to me like it doesn't really wrap at 62 characters, it just doesn't rewrap at all.
Has this happened more than once?
If you have a look around line 2212 of the file you provided, and switch on the page markers (right-click the Img:068 label, you can see that you have a page marker between the x and / of the closing x/. This means that it doesn't get recognized as a x/, so the /x...x/ behaviour goes on, until another x/ is found.
So the rewrap isn't really broken in this case. If you find that your page markers regularly end up inside the x/ markup (or other problematic positions), I'd recommend to try and narrow down when that happens, and then report a separate bug on that.