I'm referring to the update stream being broken. A stock Squeak5.0-15113 cannot currently be updated to latest trunk because of that underscore. I wanted to make sure Dave wasn't confusing that with his change.
Correction: Okay, I didn't realize we allowUnderscoreAssignments by default. Really, still?
When I make my trunk image, I have been loading my own prefs to set my updateUrl to trunk for myself, but it also includes setting this off, and so that's why it was blowing up for me.