Multiple InventoryClickEvent called instead of InventoryDragEvent in CREATIVE

[seercle]

Expected behavior

I expect InventoryDragEvent being called, as it does with other game modes

Observed/Actual behavior

When in creative, instead of calling InventoryDragEvent at the end of the drag as usual, one InventoryClickEvent is fired per slot dragged into

Steps/models to reproduce

public class DragIssuePlugin extends JavaPlugin implements Listener {

  @Override
  public void onEnable() {
    getServer().getPluginManager().registerEvents(this, this);
  }

  @EventHandler
  public void onInventoryClick(InventoryClickEvent e){
    e.getWhoClicked().sendMessage("CLICK");
  }

  @EventHandler
  public void onInventoryDrag(InventoryDragEvent e){
    e.getWhoClicked().sendMessage("DRAG");
  }
}

Plugin and Datapack List

None except the one mentioned above

Paper version

This server is running Paper version git-Paper-464 (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: e709245)
You are running the latest version
Previous version: git-Paper-"00fd87a" (MC: 1.20.4)

Other

This issue is likely related to #10377, as both are issues with InventoryClickEvent in creative

[electronicboy]

This is 100% down to how the client behaves in creative mode, the API is likely working 100% as intended from what the client is sending it

[Machine-Maker]

I'm closing this as WAI. To be clear, this only happens in the creative inventory screen while in creative mode, not in other regular inventories. The client does indeed send an individual ServerboundSetCreativeModeSlotPacket for each slot to set the contents based on the client drag. The event that is fired for each of those packets is an InventoryCreativeEvent (which is a subclass of InventoryClickEvent).