Just a short bug report but has anyone else encountered random pictures being added to their favorites? I noticed one in my favorites that was uploaded to the site this morning around 8:00 AM, and I'm just now logging into the site today (currently 5:38 PM as of this writing) and noticed that picture was added to my favorites. I've seen this behavior before on my e6 account but kinda just shrugged it off for the time being and even changed my password as a precaution but it seems to still persist.
Picture I'm referring to: (NSFW) https://e621.net/post/show/966707
Updated