I am facing a recurring problem with eZ. Modify a class (ContentType) that has many instances.
In my case I want to add an attribute to the article class (id = 2).
 I go to the BO and add my attribute.
 I click on “Apply” and I have the following message in green.
The Content type draft was successfully updated.
 I click OK and after a moment I have the following message in red!
Failed to load ‘http://edb.lxc/pjax/contenttype/update/2/eng-GB’
In eZ4, after step 2 we could launch a script to apply the modify to all the exitents objects. (I do not know if this script is native …)
How do we do this in ezplatform?