In the /give command, item syntax for red sandstone slab is wrong.

In the /give command, the item name for red sandstone slab should be

/give @s red_sandstone_slab 1

but in the beta, it is

/give @s wood_slab2 1

Steps to reproduce

1. Go into 1.14.60 and type 2
2. Go into 1.16.0.66 and type 2

What I expected

When I go into 1.16.0.66, when I type 2, nothing should come.

What I observed

 When I go into the most recent beta, when I type 2, something comes.

Note

This is the same for acacia leaves showing

/give @s leaves2 1

 and the same for acacia logs showing

/give @s log2 1