[Bug]SwapItemSlot method of ItemSlotCollection won't invoke any event

[Justus]

Since this method will change ItemCollection(slot index inside ItemSlotCollection), I think the `UpdateCollection` may need be invoked at the end
of `SwapItemSlot` method?

Or is there any other event which is more suitable for this?

If you decide how to fix this, please let me know. I want to fix it myself first and still keep compatibility with future update of UIS.

 

[Sangemdoko]

You are absolutely correct, this line of code was missing.

I've added it exactly the same as in your snapshot