Prop 2½ override coming to Somerville this November?

[gruene.livejournal.com]

I received a telephone survey this afternoon regarding a potential ballot question this fall that would raise property taxes to pay for the new Somerville High School. This is the first I'd heard that a so-called "Prop 2½ override" was being considered, which, I believe, would be the first such vote in Somerville's history. Does anyone have more information about this?

Background on the new school here: http://www.somervillema.gov/highschool/