The Bug

When changing a loot table to use a set_count function where the count value is based on storage, you will get the same loot result as before changing the loot table until restarting the game.

Steps to reproduce

1. Copy the vanilla data/minecraft/loot_tables/blocks/diamond_ore.json
2. Add a set count function like this

   {
   	"function": "set_count",
   	"add": false,
   	"count": 2
   }
   

3. Do a /reload
   You will get 2 diamonds when mining the diamond ore
4. Change the function to something like this

   {
   	"function": "set_count",
   	"add": false,
   	"count": {
   		"type": "minecraft:storage",
   		"storage": "neun:ore_counts",
   		"path": "diamonds"
   	}
   }
   

5. Do /data modify storage neun:ore_counts diamonds set value 3
6. Do /reload
   You will still get 2 diamonds when mining the diamond ore
7. Change count to hardcoded 5 and /reload
   You will get 5 diamonds when mining the diamond ore
8. Change count back to storage based and /reload
   You will still get 5 diamonds when mining the diamond ore
9. Close and reopen the world
   You will still get 5 diamonds when mining the diamond ore
10. Close and reopen the game
    You will now get 3 diamonds when mining the diamond ore
11. Do /data modify storage neun:ore_counts diamonds set value 20
    You will now get 20 diamonds when mining the diamond ore

Expected Behavior

The loot table should base its diamond count on the storage after /reload

Observed Behavior

You need to close and reopen the game to get the desired behavior.

Attachment

I attached the datapack I used for testing. Since you need to update it to reproduce, I still recommend you create your own, but you can use it as a basis.