Revert "Stop saving and restoring contexts unnecessarily."
Revert "Stop saving and restoring contexts unnecessarily."

It turns out it was actually necessary. :)

tgdavies/codeworld,tgdavies/codeworld,venkat24/codeworld,pranjaltale16/codeworld,google/codeworld,tgdavies/codeworld,three/codeworld,venkat24/codeworld,stefan-j/codeworld,venkat24/codeworld,nomeata/codeworld,three/codeworld,google/codeworld,alphalambda/codeworld,stefan-j/codeworld,google/codeworld,pranjaltale16/codeworld,parvmor/codeworld,parvmor/codeworld,stefan-j/codeworld,three/codeworld,pranjaltale16/codeworld,parvmor/codeworld,alphalambda/codeworld,nomeata/codeworld,alphalambda/codeworld,nomeata/codeworld