After applying the hotfix to stop myself from teleporting everywhere, I suddenly discovered that my character had mysteriously gained knowledge of Flames of the Heckforge, despite not being a demonologist at all! The skill replaced were-diggle form on my skill bar. I can re-add werediggle form, so my save isn't broken, just...excessively freatured
Interesting. I had this happen with Abyssal Fire when I upgraded to 1.09, but I had a demonologist, so I assumed it was related to the addition of new skills. (I lost a beserker skill since a new skill was inserted below it, and I had that instead. ) I did find it weird that I could click the skill to use it, but it didn't show up when I clicked '+' do add it manually.