I looked on YouTube to see how to do this exploit in order to know what they were talking about because it was very confusing. From what I saw, you really have to do it on purpose, and know what you’re doing. For those of us not using the exploit we should be safe.
That said it is possible that one may do this by accident, sometimes building gets weird, since sometimes it doesn’t let you place pieces, but “workarounds” then lets you place the pieces.
For example a space that would need a pillar won’t let you place a ceiling piece, but destroying the piece next to it will then allow you to place the one you wanted, then you put another one in the place of the one you destroyed. However, upon logging out and back in, the piece the game didn’t want you to place is missing.
I know that’s not what the patch is talking about, but I just wanted to underline the fact that you have to know your way around cheats and workarounds. Of course…that’s kind of moot as the exploit here doesn’t disappear when you do it.