Since 2017 March, with new module upgrade (probably Entity_translation), some fields in the header look corrupted:

these link are derived form my local Acquia server, but the same issue apears also on the real web site (header of any pages)

before upgrade: (root = imalo1)

link rel="canonical" href="http://imalo1.dd:8083/fr/contenu/atelier"
link rel="alternate" hreflang="x-default" href="http://imalo1.dd:8083/fr/contenu/atelier"

after upgrade: (root = imalo10)

link rel="canonical" href="Atelier%20Isabelle%20MALO10_fichiers/atelier.htm"
link rel="alternate" hreflang="x-default" href="Atelier%20Isabelle%20MALO10_fichiers/atelier.htm"

May be I haven't initialyzed some variables, somewhere, but I didn't find the cause. Is someone able to tell me in which configuration or module I need to correct variables.

Thanks in advance for your help.