From e09fd93e59dbae5bca9da7def6ddafc6beda9987 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20K=C3=BChn?=
 <philippkuehn@MacBook-Pro-von-Philipp.local>
Date: Mon, 13 Dec 2021 13:33:13 +0100
Subject: [PATCH] fix: check for invalid content in `insertContentAt` command

---
 packages/core/src/commands/insertContentAt.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/core/src/commands/insertContentAt.ts b/packages/core/src/commands/insertContentAt.ts
index ba84b50d1..d94a88e40 100644
--- a/packages/core/src/commands/insertContentAt.ts
+++ b/packages/core/src/commands/insertContentAt.ts
@@ -59,6 +59,9 @@ export const insertContentAt: RawCommands['insertContentAt'] = (position, value,
       : [content]
 
     nodes.forEach(node => {
+      // check if added node is valid
+      node.check()
+
       isOnlyBlockContent = isOnlyBlockContent
         ? node.isBlock
         : false