Post shows as favorited after logout

[JustinSainton]

Goal:
Since we've disabled unauthenticated users, we'd like to ensure posts don't show as favorited once the user logs out.

Steps to replicate:
(On https://dinnerthendessert.com – not one I'm working on, just a live site I've replicated the issue on.)

Save a recipe
Recipe not saved; trigger login form
Login
Page refreshes; navigate to post and save
Log out
Page refreshes; navigate to post and recipe still in saved state
What is happening:
After logging out, the posts still shows to the user as "saved".

What I expected to happen:
All posts in an unsaved state, until I log in again, then fetch user meta.

Device & browser I'm you using:
Tested in Chrome, Version 76.0.3809.100 (Official Build) (64-bit), both profiled and incognito.