Deleting empty paragraph also deletes proceeding block

[iandunn]

Problem

If you focus on an empty paragraph and hit delete, it's deleted, but so it the block that follows it.

Steps to Reproduce

1. Paste the below markup into the Code editor, and switch to Visual
2. Focus on empty paragraph, hit delete

<!-- wp:paragraph -->
<p>foo bar</p>
<!-- /wp:paragraph -->

<!-- wp:paragraph -->
<p></p>
<!-- /wp:paragraph -->

<!-- wp:quote -->
<blockquote class="wp-block-quote"><p><span style="font-size: inherit;">bar foo</span></p><cite>quix</cite></blockquote>
<!-- /wp:quote -->

Expected

Only the empty paragraph should be deleted.

Actual

The following block is also deleted.

Desktop

• Chrome 78.0.3904.108
• WP 5.3.1

[talldan]

Hey @iandunn, I was able to reproduce slightly different results—instead of being deleted the blockquote is converted into separate paragraphs, which still is a bug.

This was testing against master (Chrome, Mac OS) so that might be the reason for the different behaviour.

[ntsekouras]

I'm closing this as was fixed here: #8735