Operation SetFileName, when used, breaks the document saving

With the attached plugin generated by the Studio project https://connect.nuxeo.com/nuxeo/site/studio/ide?project=nuxeo-filename-synchronization_nux to reproduce the bug:

• Create a File with a file in the file:content property
• Modify the document, more specifically the title.
• Note after saving that the filename is modified with the new title you put, but that the title of the document is still the old title.
  Now have a look at the chain that executed on "about to modify" event, there is no reason for this.
  With such a chain, expected behavior would be that the title is modified as set in the modification form.