diff -r 34a75bd8d0b9 -r d48946d164c6 client/src/components/SessionForm.js
--- a/client/src/components/SessionForm.js	Tue Jul 25 19:11:26 2017 +0200
+++ b/client/src/components/SessionForm.js	Fri Jul 28 19:40:35 2017 +0200
@@ -155,8 +155,8 @@
 
   return {
     currentSession: props.session,
-    createGroup: state.createGroup,
-    groups: state.groups,
+    createGroup: state.get('createGroup'),
+    groups: state.get('groups'),
     group
   };
 }