When repeatedly changing size, the player jitters a lot.

[CosmicCrowMC]

Describe the bug When changing size, you're unable to move properly, if at all.

To Reproduce

1. Set up a repeating command block with the command "/sizeof @p multiply 0.9999" (or a number very close to 1)
2. Set the command block to "always active", close the command block menu and try moving around, especially in the air.

Expected behavior To change size without stuttering. The expected behavior happens in 1.12.2.2.0.0.1.

(Can't really post a screenshot, but I can send a clip on the Discord if you need.)

Additional information:

• Installed mods: Chiseled Me, Optifine 1.12.2_HD_U_F5
• Forge version: 1.12.2-14.23.5.2838
• Mod version: 1.12.2.2.1.0.0-beta

[necauqua]

Ok this one is like very hard to fix, tried multiple times and never succeeded yet, but obviously this is a severe bug and I will keep trying.

[necauqua]

Fixed in ede2651