Issue Description
When editing a template and you validate the HTML, you receive an error of 'Error: Nested Editable Element: ...' with the id of the element following causing you to not be able to approve the template.
Issue Resolution
This is due to having an element with a 'mkto...' class nested inside another element with a 'mkto...' class. Below is an example:
<div class="mktEditable">
<div class="mktEditable"></div>
</div>
You will need to remove the 'mkto...' class reference from one of the elements to be able to pass validation and approve the draft as in the corrected example below:
<div class="mktEditable">
<div class="newClassName"></div>
</div>
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