prevent free coach from showing up in plan

rowers/plannedsessions.py

@@ -465,12 +465,12 @@ def add_team_session(t,ps):
 def add_rower_session(r,ps):
     teams = Team.objects.filter(manager=ps.manager)
     members = Rower.objects.filter(team__in=teams).distinct()
-    if r in members:
+    if r in members and r.rowerplan != 'freecoach':
         ps.rower.add(r)
         ps.save()
 
         return 1
-    elif ps.manager.rower == r:
+    elif ps.manager.rower == r and r.rowerplan != 'freecoach':
         ps.rower.add(r)
         ps.save()