It deserves to be checked out but given the good knowledge of the potential troublemakers and active far right extremist militants the French police has, I would be surprised they could freely set up the French President the day of an official ceremony.... that would be a major failure and looking at the recent handling of demonstrations that were not allowed, it doesn't look credible that the hostile crowd on the Champs Elysees belonged to any extreme organised clandestine fascist organisation.
Have u found it?