diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/blocks/missing/block.json
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/blocks/missing/block.json	Tue Dec 15 13:49:49 2020 +0100
@@ -0,0 +1,23 @@
+{
+	"name": "core/missing",
+	"category": "text",
+	"attributes": {
+		"originalName": {
+			"type": "string"
+		},
+		"originalUndelimitedContent": {
+			"type": "string"
+		},
+		"originalContent": {
+			"type": "string",
+			"source": "html"
+		}
+	},
+	"supports": {
+		"className": false,
+		"customClassName": false,
+		"inserter": false,
+		"html": false,
+		"reusable": false
+	}
+}