fixes for coach trial

rowers/models.py

@@ -531,6 +531,13 @@ class TeamInviteForm(ModelForm):
     user = UserFullnameChoiceField(queryset=User.objects.all(), required=False)
     email = forms.EmailField(required=False)
 
+    def __init__(self, *args, **kwargs):
+        userid = kwargs.pop('userid',0)
+        super(TeamInviteForm, self).__init__(*args, **kwargs)
+        if userid:
+            self.fields['user'].initial = userid
+        
+
     class Meta:
         model = TeamInvite
         fields = ['user', 'email']