FIX: sk2 support

FIX: sk2 support

diff --git a/assets/javascripts/templates/connectors/user-custom-preferences/user-manager.hbs b/assets/javascripts/templates/connectors/user-custom-preferences/user-manager.hbs
index c9ddb8c..40ffa53 100644
--- a/assets/javascripts/templates/connectors/user-custom-preferences/user-manager.hbs
+++ b/assets/javascripts/templates/connectors/user-custom-preferences/user-manager.hbs
@@ -1,6 +1,13 @@
 <div class="control-group">
   <label class="control-label">{{i18n 'discourse_dev_additions.manager.title'}}</label>
   <div class="controls">
-    {{combo-box content=allManagers value=userManager class="user-manager" none="discourse_dev_additions.manager.none"}}
+    {{combo-box
+      content=allManagers
+      value=userManager
+      valueProperty=null
+      nameProperty=null
+      class="user-manager"
+      none="discourse_dev_additions.manager.none"
+    }}
   </div>
 </div>

GitHub sha: 8c66e22f