Minecraft wiki entry for Development_versions, associated text: MC-255 – Graphical issue with trading.
MC-312 – Item textures of spawn eggs and firework stars not aligned properly when stacked.
MC-674 – Items different only in damage cannot be swapped.
MC-1626 – Z-fighting in beacon block bottom.
MC-1959 – Placing double slabs ignore damage values.
MC-1969 – minecarts cant travel through nether portals.
MC-3593 – Lightning does not flash.
MC-4499 – Beacon tiers do not work at y=0.
MC-4510 – Enchantment not showing in item frame.