As the topic says. If you’re not sure what I mean, this image should demonstrate it. These two beds are in the same location, but despite one being rotated, its bounds are identical; attempting to move the top bed such that its model is against a wall to the upper-right fails one block short, and moving it as close as possible against a wall to the upper-left allows the model to intersect.
This behaviour is identical on other beds, dressers, fences (both wood and cobblestone) and gates - any non-square objects. As far as I remember this bug has existed since I first tried the game, I just kind of expected it to have been already reported and fixed, but it persists to this day and I can’t be sure if it’s been noticed.