Fixes #2011 user with granular permissions is shown only once in overlay

app/assets/javascripts/app/controllers/ticket_overview.coffee

@@ -415,7 +415,7 @@ class App.TicketOverview extends App.Controller
     group = App.Group.find(groupId)
     users = []
 
-    for user_id in group.user_ids
+    for user_id in _.uniq(group.user_ids)
       if App.User.exists(user_id)
         user = App.User.find(user_id)
         if user.active is true
@@ -620,7 +620,7 @@ class App.TicketOverview extends App.Controller
           users.push user
     for group in groups
       valid_user_ids = []
-      for user_id in group.user_ids
+      for user_id in _.uniq(group.user_ids)
         if App.User.exists(user_id)
           if App.User.find(user_id).active is true
             valid_user_ids.push user_id

test/browser/admin_drag_drop_to_new_group_test.rb

@@ -43,13 +43,7 @@ class AdminDragDropToNewGroupTest < TestCase
 
     assert_not_nil(group)
 
-    checkbox = group.find_element(css: 'input[value=full]')
+    %w[read create].each { |val| toggle_checkbox(group, val) }
-
-    @browser
-      .action
-      .move_to(checkbox, 0, 10)
-      .click
-      .perform
 
     click(css: '.modal button.js-submit')
 
@@ -85,5 +79,27 @@ class AdminDragDropToNewGroupTest < TestCase
 
     group_description = new_group_container.find_element(css: '.batch-overlay-assign-entry-detail').text
     assert_equal('1 PEOPLE', group_description)
+
+    @browser
+      .action
+      .move_to(new_group_container)
+      .perform
+
+    sleep(1)
+
+    users_in_group = @browser.find_elements(css: '.js-batch-assign-group-inner .batch-overlay-assign-entry[data-action=user_assign]')
+    assert_equal(1, users_in_group.count)
+  end
+
+  private
+
+  def toggle_checkbox(scope, value)
+    checkbox = scope.find_element(css: "input[value=#{value}]")
+
+    @browser
+      .action
+      .move_to(checkbox, 0, 10)
+      .click
+      .perform
   end
 end