I tried this build briefly on win32 and had a function callspec tool-tip pop up and refuse to go away (even if i switched to other apps). I wasn't able to replicate in the short time i was using it, so this may be noise. EDIT: I also see the rogue tooltips on linux - this time they remain on screen indefinitely when i switch to another app but do disappear when i switch back to cb.
Another issue, this time on linux. If I edit a script in CB with the executable permission set, then save that file, it loses its exec permission. I'm sure this behavior goes back many many revisions...