The fix should be applied to AOSP keyboard app. Maybe you should put a bounty for the fix in the keyboard app.
Discussion
AOSP Keyboard won't get fixed, let's just hope that #GrapheneOS nostr:nprofile1qqs9g69ua6m5ec6ukstnmnyewj7a4j0gjjn5hu75f7w23d64gczunmgpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43q4gnztg finally will ditch it for a better one.
Why don't you install another keyboard? You can disable Network permission after downloading necessary languages.
I know, though I'd like the OS to come with a proper keyboard, and I'm not quite sure which keyboard would be a proper replacement for the AOSP one. Last I heard #GrapheneOS is going to fork one to become a replacement.
