Light-emitting blocks (including end portal frames) ignore ambient occlusion/smooth lighting, regardless of model's settings

Can confirm in 1.17.1.

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As there is currently a dedicated ticket for end portal frames (MC-165504), it may be worth moving all such information to that report and only having this ticket be about light-emitting blocks in general, as end portals are an odd case (they emit a light level of 1, which is almost unnoticable and effectively useless - removing it would fix more problems than it would cause) and as such I feel a dedicated report is warranted for them in contrast to higher-level emitters.

I can confirm this behaviour in 22w05a and have attached a resource pack to make reproducing this issue incredibly easy. This resource pack replaces models of some light-emitting blocks with cube_all models (cube_all.json does not have ambient occlusion disabled) which use a texture of a white block:

• end portal frames become white concrete

• enchanting tables become white wool

• dragon eggs become powder snow

• glowstone becomes snow

Placing one of these blocks on the floor and then surrounding it with the block it's been made to imitate shows the lack of ambient occlusion very, very clearly.

As the original reporter of this ticket has been inactive since 2018, can I request ownership of this issue?