Store pretranslations for each locale separately #3075
Merged
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Fix #3073.
We currently retrieve pretranslations for each locale separately, and store them all at once with a single DB query (for all locales). That makes our DB performance a little bit better, but risks the need for additional retrieval of already retrieved pretranslations in case of an error during processing of one of the locales.
Since retrieving pretranslations is significantly slower than writing them to the DB, we should write to DB for each locale separately, right after pretranslations are retrieved.