Ghost item bug when adding an item to your hotbar slots with commands immediately after using them.

When using commands to readd an item you just used to your the slot you just emptied, a ghost item appears in that slot until you enter your inventory and click on the slot.

Steps to Reproduce:
1. Run the command "/scoreboard objectives add grassUser minecraft.used:minecraft.grass_block" in chat.
2. Place a two block command block chain like depicted below.

3. In the top command block, type "/scoreboard players set @a grassUser 0" and set it to Always Active

4. In the bottom command block, type "/give @a[scores={grassUser=1..}] minecraft:grass_block" and set it to Always Active Note: Remove that random backslash in the command I can't remove it on the issue tracker for some reason.

5. Switch to survival mode and place a grass block. You now have a ghost item in your mainhand.