Extending the editor following the steps outlined in the Extending the Content Editor documentation renders a duplicate instead of replacing/updating the existing code-block when we're editing a blog post or forum thread. This is the case with both of the two extensions we've applied to our editor.
We see no issues in the code/implementation and are wondering if we're the first to bring this up or is a known issue?
Edit Blog Post or Forum Thread
1. Click Edit
2. Make changes:
3. Result is a duplication instead of an update:
Version: 10.3.1.7330
OS: Windows 10
Browser: All latest (Edge/Chrome/Firefox)