If you add a "Latest Items" block to your landing page and set its source to be the same landing page were the block is, new items won't be displayed.

Steps To Reproduce

1. Edit "ezpublish_legacy/settings/override/block.ini.append.php" and add the following lines:

   [General]
   AllowedTypes[]=LatestContent6
   
   [LatestContent6]
   Name=Latest content 6 items
   NumberOfValidItems=6
   NumberOfArchivedItems=6
   ManualAddingOfItems=disabled
   FetchClass=eZFlowLatestContent
   FetchParameters[Source]=NodeID
   FetchParametersSelectionType[Source]=single
   FetchParametersIsRequired[Source]=true
   FetchParameters[Classes]=string
   FetchFixedParameters[Limit]=12
   ClassesList[]
   ClassesList[]=article
   ClassesList[]=landing_page
   ViewList[]=latest_content
   ViewName[latest_content]=Latest content
   

2. Clear the caches
3. Open the backoffice and create a landing page
4. In that landing page layout attribute, add a new "Latest content 6 items" block
5. Publish the landing page
6. Edit the landing page
7. Set the "Latest content 6 items" source to the same landing page where you created it
8. Publish the landing page
9. Under that landing page, create three articles
10. Execute the ezflow cronjob:

    php ezpublish/console --env=prod ezpublish:legacy:script runcronjobs.php ezflow
    

11. Confirm no items will be displayed in the block