Resolution: Works As Intended
Affects Version/s: Minecraft 19w14a, Minecraft 19w14b, Minecraft 1.14 Pre-Release 1, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 5, Minecraft 1.14
Fix Version/s: None
In 1.13.2, retracted pistons and glass were not considered Block Normal Cubes.
An example of how it changes gameplay:
Exit end gateways did not consider retracted pistons and glass as valid spawning positions in 1.13.2. Now they do.
What should happen:
Retracted pistons and glass shouldn't be considered Block Normal Cubes, and an exit gateway should not consider them as valid spawning locations, just like with extended pistons.