Open potted eyeblossom is shaded (flower_pot_cross_emissive)

Relates to: MC-129826 MC-214662 MC-236474 MC-262410 MC-262676 MC-262696

The bug

For normal potted cross models, shading is not applied to the cross planes (a 10-year-old issue that was finally fixed in 1.21.2: see MC-129826). However, the newly implemented flower_pot_cross_emissive.json model unaccountably shades each plane of the cross for unknown reasons. This causes one plane to look darker than the other.

How to fix

Very easy to fix - just add

"shade": false,

to the four last planes in that json model so that they appear at the correct brightness in-game.

This same general idea can also be used to fix MC-236474, MC-262410, MC-262676 and MC-262696, the other four extant erroneous model shading issues.