Added logging to find race condition.

app/models/application_model.rb

@@ -497,6 +497,7 @@ returns
     # if we do not have it cached, do lookup
     if !updated_at
       o = select(:updated_at).order(updated_at: :desc).limit(1).first
+      logger.debug "result latest_change #{o.inspect}"
       if o
         updated_at = o.updated_at
         latest_change_set(updated_at)

test/unit/session_basic_ticket_test.rb

@@ -3,24 +3,30 @@
 require 'test_helper'
 
 class SessionBasicTicketTest < ActiveSupport::TestCase
-  test 'b ticket_overview_index' do
+  UserInfo.current_user_id = 1
+
+  # create users
+  roles  = Role.where( name: [ 'Agent' ] )
+  groups = Group.all
+
+  agent1 = User.create_or_update(
+    login: 'session-basic-ticket-agent-1',
+    firstname: 'Session',
+    lastname: 'session basic ' + rand(99_999).to_s,
+    email: 'session-basic-ticket-agent-1@example.com',
+    password: 'agentpw',
+    active: true,
+    roles: roles,
+    groups: groups,
+  )
+
+  # create ticket
+  ticket = Ticket.create( title: 'default overview test', group_id: 1, priority_id: 1, state_id: 1, customer_id: 1 )
+  sleep 6
 
+  test 'b ticket_overview_index' do
     UserInfo.current_user_id = 1
 
-    # create users
-    roles  = Role.where( name: [ 'Agent' ] )
-    groups = Group.all
-
-    agent1 = User.create_or_update(
-      login: 'session-basic-ticket-agent-1',
-      firstname: 'Session',
-      lastname: 'session basic ' + rand(99_999).to_s,
-      email: 'session-basic-ticket-agent-1@example.com',
-      password: 'agentpw',
-      active: true,
-      roles: roles,
-      groups: groups,
-    )
     agent1.roles = roles
     assert( agent1.save, 'create/update agent1' )
 
@@ -30,7 +36,7 @@ class SessionBasicTicketTest < ActiveSupport::TestCase
     # get as stream
     result1 = client1.push
     if !result1
-      Rails.logger.debug "FAILD Sessions::Backend::TicketOverviewIndex push"
+      Rails.logger.error "FAILD Sessions::Backend::TicketOverviewIndex push"
     end
     assert( result1, 'check ticket_overview_index' )
 
@@ -53,23 +59,8 @@ class SessionBasicTicketTest < ActiveSupport::TestCase
   end
 
   test 'b ticket_overview_list' do
-
     UserInfo.current_user_id = 1
 
-    # create users
-    roles  = Role.where( name: [ 'Agent' ] )
-    groups = Group.all
-
-    agent1 = User.create_or_update(
-      login: 'session-basic-ticket-agent-1',
-      firstname: 'Session',
-      lastname: 'session basic ' + rand(99_999).to_s,
-      email: 'session-basic-ticket-agent-1@example.com',
-      password: 'agentpw',
-      active: true,
-      roles: roles,
-      groups: groups,
-    )
     agent1.roles = roles
     assert( agent1.save, 'create/update agent1' )
 
@@ -79,6 +70,9 @@ class SessionBasicTicketTest < ActiveSupport::TestCase
 
     # get as stream
     result1 = client1.push
+    if !result1
+      Rails.logger.error "FAILD Sessions::Backend::TicketOverviewList push"
+    end
     assert( result1, 'check ticket_overview_list' )
 
     # next check should be empty / no changes