Minecraft wiki entry for Development_versions, associated text: MC-20144 – Saturation and Instant Health/Damage effects do not have an icon.
MC-35920 – Some translucent parts of entities make translucent blocks, block entities and some entities invisible (depending on loading order).
MC-86846 – Changing a powered command block from impulse or chain mode to repeat mode does not trigger it until repowering.
MC-109108 – Mobs getting stuck on vines.
MC-120480 – Pets teleport onto blocks which have a solid "bottom", not "top" face.
MC-124140 – Anchoring does not reset after use and is implicitly applied in nonsensical cases by default.
MC-125104 – Cancelling delete world screen and options sub-menus using Esc opens main menu.
MC-129806 – Team prefixes and suffixes do not show for villagers without a custom name.
MC-131552 – Cannot craft stripped wood from stripped log.
MC-145021 – Tamed animals are not able to teleport to the player when they are on the snow layer blocks.
MC-146213 – Loading bar on splash screen is able to extend beyond its black outline.
MC-156005 – Tamed wolves no longer teleport to the player when they're in water.
MC-161733 – Vindicator's "idle5" sound is unused.
MC-162952 – Stacked numbers of an item in inventory are rendered behind the potion effect status effect in inventory.