fix: Restrict content in notices, closes #5624

shared/editor/nodes/BulletList.ts

@@ -17,7 +17,7 @@ export default class BulletList extends Node {
   get schema(): NodeSpec {
     return {
       content: "list_item+",
-      group: "block",
+      group: "block list",
       parseDOM: [{ tag: "ul" }],
       toDOM: () => ["ul", 0],
     };

shared/editor/nodes/CheckboxList.ts

@@ -16,7 +16,7 @@ export default class CheckboxList extends Node {
 
   get schema(): NodeSpec {
     return {
-      group: "block",
+      group: "block list",
       content: "checkbox_item+",
       toDOM: () => ["ul", { class: this.name }, 0],
       parseDOM: [

shared/editor/nodes/Notice.tsx

@@ -26,7 +26,7 @@ export default class Notice extends Node {
           default: "info",
         },
       },
-      content: "block+",
+      content: "(list | blockquote | hr | paragraph | heading | attachment)+",
       group: "block",
       defining: true,
       draggable: true,

shared/editor/nodes/OrderedList.ts

@@ -23,7 +23,7 @@ export default class OrderedList extends Node {
         },
       },
       content: "list_item+",
-      group: "block",
+      group: "block list",
       parseDOM: [
         {
           tag: "ol",