Paste Extension: keyboard shortcut paste not triggering editablePaste with event

Description

Hi! Thanks a lot for the add-on, it's awesome :)

I'm currently having the following issue:
When trying to paste using cmd + v on the contenteditable, the editablePaste event triggered does not contain the original event information. Instead, the editable element is returned three times:

medium-editor/src/js/extensions/paste.js

Line 252 in d113a74

    
           this.trigger('editablePaste', { currentTarget: editable, target: editable }, editable);

From what I understand, this is manually triggered because the paste event happens inside of the pastebin.

Originally changed here:
#1099
and fixed, partially, here:
#1124

I understand the reason behind it, but I don't know why returning the same object three times is necessary, specially without sending the original event !

My use case is I want to allow pasting files, which I need to do after the past extension does its thing and triggers the editablePaste event. But without the original event information, it's impossible. Unless I'm missing something !

I appreciate the support and I can offer to create a PR if that helps :)

Steps to reproduce

Paste using keyboard commands (cmd + v)
Subscribe to editablePaste event trigger

Expected behavior:
Receive the original paste event as a parameter

Actual behavior:
A "fake" event object containing two times the same object is returned

Versions

medium-editor: 5.23.3
browser: Chrome v89
OS: Mac OS 10.15