Copy&Paste breaks layout

Additional experience:
Let's assume, the inserted layout source code looks like this:

<div class="layout two-col">
<div class="region-left">
</div>
<div class="region-right">
</div>
</div>

When I paste content encapsulated with only one html tag (like <p>Content</p>) into the left region, it works as supposed, disregarding that the surrounding p tag ist stripped. Result:

<div class="layout two-col">
<div class="region-left">
Content
</div>
<div class="region-right">
</div>
</div>

If the pasted content hast two html tags (like <h2>Headline</h2><p>Content</p>), the content of the first tag is inserted into the intended layout region, the content of the second is inserted after and outside of that region. Result:

<div class="layout two-col">
<div class="region-left">
Headline
</div>
Content
<div class="region-right">
</div>
</div>

The CKEditor 5 plugin for CKEditor Layouts has been rewritten in 2.1.0. After this rewrite I cannot reproduce this issue. Also, in the first scenario to P tag is preserved now.

Automatically closed - issue fixed for 2 weeks with no activity.