The title says it all. It happened three or four times already (and no, I am not mistaking the second roll required to unlock a disarmed chest for a disarming trap roll).
It seems to happen more often to chest, but it happens to traps too (in the Green Hag’s lair).
The chest in which it happens for sure (it is not the only one, but this is the one I remember) is
The Harper’s chest in Grymforge that you can see after you fight off 3 Mimics and find the toy chest nearby
