Controller: Unclear/inconsistent inventory placement logic?

I can't pin down the logic behind where items go when you remove a piece of clothing or a tool, and I think it might not be consistent unless I'm just missing something. It seems like a lot of the time, items when removed attempt to place themselves in the inventory slot they were previously in... but not always. Sometimes they go to the first open inventory slot available; sometimes they will go into a slot they were in... before you moved them to another slot. The fallback for this doesn't even seem consistent; if the slot the item was previously in is full, sometimes it will go to the first available inventory slot, or... will go into the slot after the one that was filled? It makes no sense at all and it's very frustrating. This might also be an issue when using keyboard shortcuts to quickly equip and unequip items when playing with keyboard/mouse, but I haven't tested.