Yup. As strange as that sounds, that’s what’s happening every single time.
To reproduce this basically place a script anywhere, type any single letter on a blank line, let the autofill show, and then hit backspace to delete that letter. Boom, studio crashes.
Currently using OS X 10.11.3, if that’s relevant.
90% sure it’s because of something with autofill, but hey I could be wrong.