Piston head data is probably incorrect

[joserobjr]

Affected Version
3.1.0-SNAPSHOT

Describe the bug
Nukkit 1.X doesn't support pistons so I couldn't test this feature, but CloudburstMC/Nukkit#914 implements it and PowerNukkit V1.X have it merged, so after a world conversion from Java Edition 1.15.2 to Nukkit 1.X and then opening the world with PowerNukkit, I could see that the heads are being rendered with the info_update block, which indicates that it has an incorrect block id or data value.

To Reproduce
Steps to reproduce the behavior:

1. Create a Java Edition 1.15.2 world and place a sticky piston receiving redstone power
2. Convert a to the Nukkit 1.X format
3. Move the world to a PowerNukkit setup
4. Go to the piston location in Bedrock Edition
5. See the block_info instead of an extended piston arm

Expected behavior
See an extended piston arm

Screenshots

[joserobjr]

Fixed.