Negative `tintindex` in block models causes `ArrayIndexOutOfBoundsException`

A custom block model with a negative tintindex causes an ArrayIndexOutOfBoundsException if the player try to render said block in an inventory.

Steps to Reproduce:

1. Start the game;
2. Load the attached resource pack;
3. Open or create a world in creative;
4. Search for "leaves" in the creative inventory;
5. The game will freeze, then crash.

Context
This bug was encountered by some forum users playing on modified servers, but still reproduces on the vanilla single-player game:

• https://www.minecraftforum.net/forums/support/java-edition-support/3211567-exit-code-1-the-game-crashed-whilst-rendering (Dec 21, 2024)
• https://minecraft.fr/forum/threads/crash-fréquent-sur-un-serveur-en-ligne.276694/ (Jan 3, 2025) (french)

Suggested Fix

// net.minecraft.client.renderer.entity.ItemRenderer

private static int getLayerColorSafe(int[] tintLayers, int index) {
    return index >= tintLayers.length ? -1 : tintLayers[index];
    //     ^ index < 0 ||
}