Don't create duplicate translation tasks.
Don't create duplicate translation tasks.

For https://unisubs.sifterapp.com/projects/12298/issues/541391/comments

pculture/unisubs,norayr/unisubs,ofer43211/unisubs,ofer43211/unisubs,wevoice/wesub,ofer43211/unisubs,wevoice/wesub,pculture/unisubs,pculture/unisubs,ofer43211/unisubs,ujdhesa/unisubs,norayr/unisubs,ReachingOut/unisubs,pculture/unisubs,wevoice/wesub,ReachingOut/unisubs,ReachingOut/unisubs,eloquence/unisubs,ReachingOut/unisubs,norayr/unisubs,eloquence/unisubs,eloquence/unisubs,norayr/unisubs,ujdhesa/unisubs,wevoice/wesub,ujdhesa/unisubs,eloquence/unisubs,ujdhesa/unisubs