Minecraft wiki entry for Development_versions, associated text: MC-82943 – Witch held item uses player held item position.
MC-83998 – Unable to place blocks on fences from off-hand.
MC-84611 – Right clicking water while duel wielding spawn eggs creates two of the mobs.
MC-102130 – Glowing slimes/drowned outline becomes black when taking damage.
MC-106826 – Can interact with (eat) cake in creative mode/hunger bar is full.
MC-111444 – Elytras can't open if the server is lagging or when moving upwards.
MC-114106 – Dispenser plays failed sound when equipping a single pumpkin or skull.
MC-119621 – Left arm swings in third person while interacting with fence with item in main hand.
MC-125204 – Trident appears floating when charging it while sneaking.
MC-127573 – Hover text is displayed for multiplayer chat while in bed even if chat is hidden.
MC-131061 – Armor stands cannot be placed by dispensers.
MC-132445 – Spawn eggs used on water do not display a hand animation.
MC-132787 – Lily pads generate much less frequently / do not generate in certain areas.
MC-134495 – Click and hover events still work when F1 is toggled.
MC-147549 – Clicking on the bell from unringable angles/clicking non-bell parts of the bell plays the hand animation.
MC-156078 – Name tags not working on endermites.
MC-158585 – Villagers spawned from dispensers have default textures no matter what biome they are in.
MC-159947 – Fire charge from dispenser does not light campfire.
MC-160895 – Breeding animals does not display a hand animation.
MC-160896 – Shearing sheep and mooshrooms does not display a hand animation.
MC-160992 – Certain blocks cause bare hand to animate when clicked on, despite no action taking place, but do not cause held items to animate.
MC-160993 – Empty flower pots cause arm animation to play even when holding incompatible items.
MC-161151 – Right clicking on redstone ore, which causes it to light up, plays no hand animation.
MC-161220 – Right-clicking on a button while it's pressed inwards still plays a hand animation.
MC-161261 – Treating zombie villagers does not display a hand animation.
MC-161262 – Feeding pandas does not play hand animation.
MC-161886 – Dropped trident items rotate around an external axis / Bed items rotate around a non-centered axis.
MC-162261 – Placed rails are not immediately updated when connecting to other rails.