I would also like to add to this bug, that when placing a command block with a command and auto:1, instead of running that command when placed it does nothing.
It seems to have been resolved in the Minecraft 18w11a, the latest snapshot.
This may be related to bug MC-109948.
Can confirm, met with this issue on arch linux.
I would also like to add to this bug, that when placing a command block with a command and auto:1, instead of running that command when placed it does nothing.