model: add the determinism fix back in.
model: add the determinism fix back in.

I spoke with @billhowe and he said it was probably a merge error.

Signed-off-by: Daniel Halperin <1a02732a15f637c31107256cbee5819e36aa7c67@cs.washington.edu>

uwescience/raco,uwescience/raco,uwescience/raco,uwescience/raco,uwescience/raco