Light blocks block explosions

The Bug

Despite being litteral air, light blocks prevent explosions from damaging nearby blocks

Steps to Reproduce

• Summon a square of light blocks.

  /fill ~1 ~ ~1 ~5 ~4 ~5 minecraft:light
  

• Summon some TNT inside of the light blocks.

  /summon minecraft:tnt ~3 ~1 ~3
  

• Take note as to whether or not light blocks prevent explosions from destroying blocks.

Observed Behavior

Light blocks prevent explosions from destroying blocks.

Expected Behavior

Light blocks would not prevent explosions from destroying blocks.