Librarians can offer same book twice

F3 + T leaves you in chat mode

Commands not accepting custom language file translations

Mobs glitch through floor (upon being hit or chunk reload)

Creepers suffering from premature eruption

Minecarts not reversing down slopes

Bizzare Endermen behaviour / no-aggro

No loaded activity in spawn chunks

Can't place signs on signs

Server crash in virgin nether

Unable to use minecart with hoppers to gather items from Nether Portals

Massive lag induced by carts on players lazy chunk fringe

Server: Regular freezing, chunk_loader chewing all CPU

Acacia Wood Plank not using translation file.

Incorrect user created if playing offline.

F3 BL reports head block, not foot block