Minecraft wiki entry for Development_versions, associated text: MC-109226 – Repeaters and comparators don't update non-solid blocks in front of them
MC-109255 – Fishing line has unlimited distance
MC-109256 – Casting fishing rod while looking straight down freezes server
MC-109269 – Player cannot cast a fishing rod while directly looking up
MC-109276 – Hopper clock spam empty lines in game output
MC-109290 – Fishing rod bobber floating in the air (lost the gravity), when the mob died
MC-109306 – Shulker boxes lose their Lock tag when mined.