Unsure how to replicate it but there have been several instances shift-clicking a crowbar, or pickaxe from a chest to inventory and it fills inventory until full of that item. has happened with crowbars, iron picks and another item (can't remember but i'm certain it was a tool)
#Unknown dupe Glitch
undone epoch
hybrid dove
this sounds like an older issue we used to see way more frequently. it can happen with a "hiccup" or lag in that the game gets "confused" for a mili second. ill keep this open in case it keeps happening and we can try to reproduce it, or if it happens again try to post a log