Barrier/light particles are not visible if barrier/light item is in offhand

The issue with the light block is MC-221555 and the barrier is MC-83003.

As the barrier one is a recursion, I suggest reducing this to only the barrier, and linking it as "clones" instead.
Mojira mods won't reopen it and will request a new report be made anyways.

I can confirm that the issue reappeared for barriers.

Can confirm in 21w14a.

Can confirm in 21w15a.

Can confirm in 1.19.

Can confirm in 1.19.2.

Also affects light blocks.

Affects 1.20.2

Code analysis:

Here inside getMarkerParticleTargets(), a 'Block' object is returned to check elsewhere for if the player for holding it. If the player is holding it, the barrier/particle is rendered. This check however only accounts for the mainhand due to "getMainHandItem()" being used.

Class: net\minecraft\client\multiplayer\ClientLevel.java - Method: getMarkerParticleTargets()

@Nullable
   private Block getMarkerParticleTarget() {
      if (this.minecraft.gameMode.getPlayerMode() == GameType.CREATIVE) {
         ItemStack itemstack = this.minecraft.player.getMainHandItem();
         Item item = itemstack.getItem();
         if (MARKER_PARTICLE_ITEMS.contains(item) && item instanceof BlockItem blockItem) {
            return blockItem.getBlock();
         }
      }
      return null;
   }