Fix unknown entity interaction clicked position getter if null

patches/api/0036-Add-PlayerUseUnknownEntityEvent.patch

@@ -10,7 +10,7 @@ Co-authored-by: Nassim Jahnke <nassim@njahnke.dev>
 
 diff --git a/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java b/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..16291c34a87fb0c610a8b2fef10a1899693cb3b8
+index 0000000000000000000000000000000000000000..a7228e248e3d8eb2e9f011dfe2c7dd9f3f48000f
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java
 @@ -0,0 +1,82 @@
@@ -82,7 +82,7 @@ index 0000000000000000000000000000000000000000..16291c34a87fb0c610a8b2fef10a1899
 +     * @see org.bukkit.event.player.PlayerInteractAtEntityEvent
 +     */
 +    public @Nullable Vector getClickedRelativePosition() {
-+        return clickedPosition.clone();
++        return this.clickedPosition != null ? this.clickedPosition.clone() : null;
 +    }
 +
 +    @NotNull