If you look now, you can see that a Model 3 in California with HW 2.5 was downgraded: https://teslafi.com/firmware/
Is this common?
Are you sure that it could not be a typographical error?
Got to be a typo. Only 2019.7 was 11, no 107's issued.
There are frequently apparent downgrades on teslafi.com which I've always assumed are logging errors, getting the versions backwards somehow.