Fix link in mail when user with similar name already exists

jm2l/views.py

@@ -653,14 +653,15 @@ def participer(request):
             CheckExist=None
         if CheckExist:
             MyLink = CheckExist.my_hash
+            NewUser = CheckExist
         else:
             DBSession.add(TmpUsr)
             DBSession.flush()
             MyLink = TmpUsr.my_hash
+            NewUser = TmpUsr
 
-        mailer = request.registry['mailer']
         # Send the Welcome Mail
-        NewUser = TmpUsr
+        mailer = request.registry['mailer']
         # Prepare Plain Text Message :
         Mail_template = Template(filename='jm2l/templates/mail_plain.mako')
         mail_plain = Mail_template.render(request=request, User=NewUser, action="Welcome")