Transferring items out of equipment inventory destroys items instead of depositing them in targeted inventory.
Put bound introspection module in top manipulator.
Put chest behind computer,

local chest = "back"
local helm = 6
local manipulator = peripheral.wrap("top")
local equipment = manipulator.getEquipment()
equipment.pushItems(chest , helm , 1, 1)

Expected result: item ends up in chest

Actual result: item is gone

I can confirm this. I reported it confidentially due to it sort of being like the inverse of an exploit. @Wojbie did it get cleared to be publicly disclosed?

Yes

Tested on 1.20.1, still an issue. Tested with this program: https://p.sc3.io/fZXY3f7ygG