Commit 96a7e18a8d2be8d9f3223a6a6c81fbaac1179869 by @smithjd15 from
2019-04-03 fixed a number of potential zero-value field values, but it
also flipped the early exit condition skipping saving a rating to file.
It seems out of place with the rest of the commit, so considering it a
mistake and reverting to the original condition.
Manually tested; works and saves again ratings to file.
483be6ef7c