Fixes #2920 - Link-Template attributes within Organizations and user cause Organization and user creation to fail within UI

app/assets/javascripts/app/controllers/_application_controller_form.coffee

@@ -361,7 +361,7 @@ class App.ControllerForm extends App.Controller
       return item
     else
       placeholderObjects = {}
-      if @model.className && !_.isEmpty(attribute.linktemplate) && !_.isEmpty(@params[attribute.name])
+      if @model.className && @params && !_.isEmpty(attribute.linktemplate) && !_.isEmpty(@params[attribute.name])
         placeholderObjects = { attribute: attribute, session: App.Session.get(), config: App.Config.all() }
         placeholderObjects[@model.className.toLowerCase()] = @params
       fullItem = $(

spec/factories/object_manager_attribute.rb

@@ -1,6 +1,11 @@
 FactoryBot.define do
   factory :object_manager_attribute, class: ObjectManager::Attribute do
-    object_lookup_id          { ObjectLookup.by_name('Ticket') }
+    transient do
+      object_name { 'Ticket' }
+      additional_data_options { nil }
+    end
+
+    object_lookup_id          { ObjectLookup.by_name(object_name) }
     sequence(:name)           { |n| "internal_name#{n}" }
     sequence(:display)        { |n| "Display Name #{n}" }
     data_option_new           { {} }
@@ -23,6 +28,13 @@ FactoryBot.define do
         'edit'       => {}
       }
     end
+
+    callback(:after_stub, :before_create) do |object, context|
+      next if context.additional_data_options.blank?
+
+      object.data_option ||= {}
+      object.data_option.merge! context.additional_data_options
+    end
   end
 
   factory :object_manager_attribute_text, parent: :object_manager_attribute do

spec/system/manage/organizations_spec.rb

@@ -0,0 +1,51 @@
+require 'rails_helper'
+
+RSpec.describe 'Manage > Organizations', type: :system do
+
+  context 'custom attribute' do
+
+    context 'text' do
+
+      context 'linktemplate' do
+
+        it 'creates record', db_strategy: :reset do
+
+          # required to edit attribute in admin interface
+          screens = { edit:  { "admin.organization": { shown: true, required: false } } }
+
+          attribute = create(:object_manager_attribute_text,
+                             object_name:             'Organization',
+                             screens:                 screens,
+                             additional_data_options: { linktemplate: 'https://example.com' })
+
+          ObjectManager::Attribute.migration_execute
+
+          refresh
+
+          visit 'manage/organizations'
+
+          within(:active_content) do
+            click '[data-type="new"]'
+          end
+
+          modal_ready
+
+          name = "Organization #{rand(999_999)}"
+
+          within '.modal-dialog' do
+            fill_in 'name', with: name
+            fill_in attribute.name, with: 'value'
+
+            click '.js-submit'
+          end
+
+          modal_disappear
+
+          within(:active_content) do
+            expect(page).to have_text name
+          end
+        end
+      end
+    end
+  end
+end