[scifantasy]

Recently, my Kindle Paperwhite (PW3) has started showing publication dates of certain books in the Author field (it will appear "[Date] | [Author]"). It has done this only for certain books--I think related to a time I (rather foolishly, I confess) tried to do an auto-update of some of the books that are marked in my Manage Content and Devices as "Update Available." That was a mistake.

The books carry that same information in the "All" (that is, the cloud-stored) copy, which I guess the Paperwhite uses to fill out such information in the absence of a local field (this has been something of an ongoing issue with Kindle for me, generally on author_sort). But now, it doesn't look like I can use a plugboard to clear the pubdate field on the local copy, or otehrwise manually erase that information.

Is there any way to clear this, or am I just stuck with it?

(Alternatively/relatedly, is there any way I can just delete wherever the Kindle locally stores its knowledge of what is in my cloud? I never want to use it online again, so maybe I can just find the right database or metadata file and delete it?)

(Before you ask--I haven't jailbroken it and I'd really rather not.)

Thanks in advance!