I've seen the latest related issues about this but no recent movement from @gregbell
I'm using ruby 1.8.7 with rails 3.1.1 with assets enabled, mysql on debian.
That happen only in development mode, and it's hard to develop with ~10sec of page load
and include jquery 2 times is useless and break application.js
FWIW, though I'm only "just another developer", I plan to try to tackle this in the next few weeks.
See #170 as well.