Sequence to periodically refresh test environment with production data?

Sequence to periodically refresh test environment with production data?

MSP 9.0 Build 9009, Linux/Postgres

Periodically (monthly maybe...) we want to "refresh" the test environment with the current production data.  We take a full production backup ever night.

I know about restoreData.sh, which is what I used to initially load the production database into my test environment a while ago.  

My question is, every time I want to refresh the test environment as described, do I just run restoreData.sh on test and load the production backup, or do I need to first run reinitializeDB.sh and then run restoreData.sh?  Or something else?

Thanks
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