After some feedback from some coworkers, there is an issue at the AddContentEditorExtensions.cs file. The problem is related to the renderContentEditor pipeline that is executed when Sitecore loads the Control Properties dialog.
The Issue-20 was created to track the problem. The issue is already fixed and new version v0.0.2.1 was released. It should be available in the Sitecore Marketplace in the next days.
https://marketplace.sitecore.net/en/Modules/S/SitecoreExtensions.aspx
Please, take a look and create a new issue if there is a new problem.
That's it for today.
Until the next post!