From 25741a1e4a2c46e457c5b9b8fa536180b527cd6a Mon Sep 17 00:00:00 2001
From: sculpt0r <github@sculpt0r.net>
Date: Wed, 20 Jul 2022 14:46:16 +0200
Subject: [PATCH] Ad manual test to prove #4931 bug

---
 .../selection/manual/optimizationlist.html    | 39 +++++++++++++++++++
 .../core/selection/manual/optimizationlist.md | 13 +++++++
 2 files changed, 52 insertions(+)
 create mode 100644 tests/core/selection/manual/optimizationlist.html
 create mode 100644 tests/core/selection/manual/optimizationlist.md

diff --git a/tests/core/selection/manual/optimizationlist.html b/tests/core/selection/manual/optimizationlist.html
new file mode 100644
index 00000000000..a47db99fec1
--- /dev/null
+++ b/tests/core/selection/manual/optimizationlist.html
@@ -0,0 +1,39 @@
+<h2>Iframe editor</h2>
+<div id="editor1">
+	<ol>
+		<li>1</li>
+		<li>2
+		<ol>
+			<li>1</li>
+		</ol>
+		</li>
+		<li>&nbsp;</li>
+	</ol>
+
+</div>
+
+<h2>Divarea editor</h2>
+<div id="editor2">
+	<ol>
+		<li>1</li>
+		<li>2
+		<ol>
+			<li>1</li>
+		</ol>
+		</li>
+		<li>&nbsp;</li>
+	</ol>
+
+</div>
+
+<script>
+	if ( bender.tools.env.mobile ) {
+		bender.ignore();
+	}
+
+	CKEDITOR.replace( 'editor1' );
+
+	CKEDITOR.replace( 'editor2', {
+		extraPlugins: 'divarea',
+	} );
+</script>
diff --git a/tests/core/selection/manual/optimizationlist.md b/tests/core/selection/manual/optimizationlist.md
new file mode 100644
index 00000000000..b59bf819d53
--- /dev/null
+++ b/tests/core/selection/manual/optimizationlist.md
@@ -0,0 +1,13 @@
+@bender-tags: selection, 4.19.2, bug, 4931
+@bender-ui: collapsed
+@bender-ckeditor-plugins: wysiwygarea, toolbar, elementspath, sourcearea, list, undo, div, table, image, basicstyles, format
+
+
+1. Select entire content via `Ctrl+A`
+2. Delete content with backspace key.
+
+**Expected** The entire list is removed from the editor
+
+**Unexpected** There are list leftovers in the editor
+
+3. Repeat steps in the second editor