There is no such flag, though this feature has been requested several times. There is a bit of a debate as to what to do with the summary screens and undervote. There are a couple of schools. One school says highlight them in red, just like blank votes. I am of that school FWIW. Another school says undervotes are perfectly acceptable, and they shouldn’t be highlighted. A third school says they should be highlighted in a color other than red, presumably yellow. I suppose a forth school would be to make the thing entirely configurable by the user.
Let me bounce it off devel and we’ll make a command decision one way or the other. Right now not many people seem happy with the current state of affairs, which is to not do anything special with undervotes on the summary screen.
in 4.1.11 Lisa reports
Is there a flag in Gems like there is for the AVOS to reject undervotes for the TS or does it just ignore an undervote?