Is AOTP Alchemist secretly an extensive Siege Ironhide remold?

So much of the transformation is 1-1 with the Siege Ironhide mold. The way the arms hide away, the way the legs form the back half of the truck mode, and I swear even the wheels are even the same.

Did I miss something??? I'm not super tuned into the news cycle for how these figures are made, but I was transforming him from memory and just went "wait hold the phone"

It's like, three extra steps. Maybe I'm just losing my mind.