UPDATE: California: One carrier jumps into the 2019 rate filing pool WAY early...
IMORTANT UPDATE: As I suspected, it turns out that the stray rate filing posted to the California Insurance Dept. website a few days ago was posted prematurely, doesn't reflect the carrier's final* rate filing, and has since been pulled from the California Insurance Dept. website.
I've been asked to remove the filing data, and seeing how there's nothing nefarious about it (I wasn't "whistleblowing" evidence of anything criminal/unethical), I'm complying with that request. Since everything in the post related to that data, there wasn't much point in keeping the rest of it either.
*(Yes, I'm aware that none of these early filings are "final" since they tend to be revised/resubmitted throughout the summer/fall, but you know what I mean.)