ctrl+pick-block will replace tools, which regular pick-block will not. ctrl+pick-block will always place the resulting item in the selected hotbar slot, but regular pick-block will fill up empty hotbar slots first. ctrl+pick-block will always create a new item, but regular pick-block will switch to the item (even if it's in the inventory and not just the hotbar) if an item stack of the resulting item is already in the inventory.
Linked issues
is duplicated by 2
Comments 5
Confirmed, only affects tile entities (chests, beacons etc).
The last part seems intended since the block you picked might have different NBT data than the stack of items in you inventory.
duplicates MC-70982.
duplicate, not sure on the ticket number.