[MC-206608] Z-fighting between falling dripstone and cobwebs

Occasionally, falling dripstone will line up with '2D diagonal' blocks and cause z-fighting. This is most noticeable with cobwebs.

Summon a large area of cobwebs along with some falling pointed dripstone above it by using the commands provided below.
```
/fill ~1 ~ ~1 ~7 ~ ~7 minecraft:cobweb
```
```
/fill ~1 ~3 ~1 ~7 ~3 ~7 minecraft:pointed_dripstone[vertical_direction=down]
```
Watch closely as the pointed dripstone sinks into the cobwebs.
Take note as to whether or not z-fighting can sometimes be seen with falling pointed dripstone inside cobwebs.

Attachments

Can confirm.

This is most likely how it should be, as with sand, anvils, etc., but this is not accurate.

Can confirm in 21w03a.

Can confirm in 21w06a.

Can confirm in 21w08b. Video attached.

7 more comments

Can confirm in 1.18.

Can confirm in 1.18.1.

Can confirm in 1.18.2.

Can confirm in 1.19.

[media]

Can confirm in 1.19.2. Here are some steps on how to go about easily reproducing this issue.

Summon a large area of cobwebs along with some falling pointed dripstone above it.

/fill ~1 ~ ~1 ~7 ~ ~7 minecraft:cobweb

/fill ~1 ~3 ~1 ~7 ~3 ~7 minecraft:pointed_dripstone[vertical_direction=down]

Watch closely as the pointed dripstone sinks into the cobwebs.
Take note as to whether or not z-fighting can sometimes be seen with falling pointed dripstone inside cobwebs.