No need to logout and back in.. if you go into your inventory, click in the off-hand storage space the amount of placed items will reset.
Originally noticed in pre6, which is when I made the gif.. no change in pre7
Note that if I load a 1.12 map it works fine. (just tested that a minute ago).
I had not noticed the other ticket, please close this one and I will follow / update there. Thanks Matthew!
Same here, whenever I sleep I get stuck in sleep limbo. Relaunching game gets me up.. 19w02a macOS.