I had a somewhat similar scary experience this week. I changed the name of a function paramter in a /tcl tcl script, which was being watched, but I kept getting an error when calling it. Finally I tried changing the name of the parameter in the call back to the old name, and it worked. So I restarted the server - and *the error did not go away*. I was finally able to get it to go away by editing the tcl file, which caused the watch to reload it.
The really bizarre thing is that later that day, the file reverted back to it's previous form again, and I had to go through the above again. I was definitely hearing Twilight Zone music that afternoon....
