ImmediatlyFast breaks NoShadow (https://github.com/PuckiSilver/NoShadow) when used in the BossBar.

This breaks the look of the bossbar on servers like Cytooxien.de. I have confirmed this issue to exist with a clean installation with only ImmediatelyFast installed.

Vanilla:

ImmediatelyFast:

Upload the game log

Upload the game log

This is the log from joining cytooxien.de: https://mclo.gs/ry2pmOV
And this is a log (from a newly restarted client) with the texture pack applied on a single player world: https://mclo.gs/teCzi1o

Also, this glitch seems to only apply when negative spaces are used.

To reproduce:

Use the shader pack I provided above and my cut down texture pack I linked below, create the bossbar "test" and add yourself to it and insert this command into a command block: (It's encoded in base64 since GitHub seems to break my Unicode characters...):
Ym9zc2JhciBzZXQgbWluZWNyYWZ0OnRlc3QgbmFtZSB7ImNvbG9yIjoiIzRFNUMyNCIsImZvbnQiOiJjYWZlc3R1YmU6cm91bmRlZC1iZy1vZmZzZXQiLCJleHRyYSI6W3sidGV4dCI6IlsifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjYifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjQifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IjMifSx7ImZvbnQiOiJjYWZlc3R1YmU6c3BhY2UiLCJ0ZXh0Ijoi84+/vyJ9LHsidGV4dCI6IlsifV0sInRleHQiOiIifQ==

Test pack: cafestube-pack - Kopie.zip

Same issue!

Possible regression from b79ff58 ?

The NoShadow resource pack is modifying core shaders which are not supported by ImmediatelyFast (and even Mojang said that modifying core shaders is not supported).

The fix is pretty simple, so heres a fixed version of the pack: NoShadow-v2.1.0.zip