Can't Make Strider Move with warped_fungus_on_a_stick

[BredyAK]

Describe the bug, provide any errors In 1.16, when you riding a saddled strider with warped_fungus_on_a_stick in hand, the strider will move in the direction you are facing. But with ViaVersion and ViaBackwards installed on my 1.16.5 server, players using 1.12.2 client can't make the strider move. (The strider is a magma cube in 1.12.2 client.)

How can we reproduce it? Steps to reproduce the behavior:

1. Join a 1.16.X server with 1.12.2 client
2. Put saddle on a strider and ride on it, hold warped_fungus_on_a_stick in your main hand
3. You'll find the strider doesn't move

Expected behaviour Let the strider move, thanks!

Screenshots Nope.

ViaVersion Dump: https://dump.viaversion.com/ed6e595b54d2c9a3a818f1698344fe02d2b354205dcb2b167d7abdd65e63985f

Additional server info I'm running my server with Java(TM) SE Runtime Environment (build 1.8.0_281-b09) and git-Paper-526 (MC: 1.16.5).

Checklist

• [x] I have included a ViaVersion dump
• [x] If applicable, I have included a paste (not a screenshot) of the error
• [x] I have tried a build from https://ci.viaversion.com/ and the issue still persists

[Jo0001]

1.13.2, 1.14.4 and 1.15.2 are also affected. However just following a player with a warped_fungus_on_a_stick in the hand works fine https://dump.viaversion.com/da242357a336ccdd033f17bfe31672a965de79c733b736c2cc2f981e95deb741