[BUG] Copy/Paste conflicts with Containers

[JonEG]

Summary / Description

When copying and pasting a content element inside a container, this new content element gets automatically sent to unused content elements.

Version

"ehaerer/paste-reference": "^4.0.3"
"b13/container": "^3.2.3"
"typo3/cms-core": "^13.4.28"

Steps to reproduce

1. Create a container add
2. Add a content element
3. Copy it and paste it inside the container.

Expected behaviour

New content element should appear as copy of the original inside the container.

Actual behavior

New content element appear under unused content elements.

Additional

Possible fix

I was able to track the bug to file vendor/ehaerer/paste-reference/Resources/Public/JavaScript/paste-reference.js Here 't3js-paste' gets replaced by 't3js-paste-default' but containers needs this class on b13/container/Resources/Public/JavaScript/Overrides/paste.js.