Watch it unfold here, in my huge ass youtube playthrough (yes I used the beta)
Rightnow I'm trying to replicate how I did that but been unsuccesful until now.
You can see that just after a while I found out it's just somehow cosmetic and you can still use that key on the hatch.
EDIT: I found the trick:
You have to disassemble the blue key and rapidly pick the yellow one before the extra inventory slot with the dismounted handle appears!