I make a large number of edits across Super User every week, but I've not seen this issue before.

If I try to make any edits to [this answer][1], the text available for me to edit is trimmed short - only the very first part of the answer is shown, the rest seems to have disappeared.

##Answer as shown originally##

![enter image description here][2]

##Answer as shown during editing##

![enter image description here][3]


  [1]: https://superuser.com/questions/7354/tools-to-keep-my-machine-spick-and-span-windows-xp/7357#7357
  [2]: https://i.sstatic.net/TXGap.png
  [3]: https://i.sstatic.net/GNmZy.png