Track any edition email template content (CustomHtml, DynamicContent, etc..)

Ideas and Feature Requests
1

My problem is: I want to detect any changes of Email entity fields “subject”, “customHtml”,’ “dynamicContent”, “headers”. My use case is the following: the user creates a new template email with the builder interface. I need to know if the user has edited one of these content fields. Then I want to create some automatic translate email routings.

I see that there is isChanged method in EmailBundle\Entity\Email. It’s used by other attributes but not customHtml. Is there a reason ?

If I add the method there

// EmailBundle/Entity/Email.php
public function setCustomHtml($customHtml)
{
    // add isChanged
    $this->isChanged('customHtml', $customHtml);
    $this->customHtml = $customHtml;
    return $this;
}

I can catch the Event EmailEvents::EMAIL_POST_SAVE and
use the $event->getChanges() method.

Is there a big impact ? Is there a reason the isChanged method has not been added in customHtml ?