A brief explanation on typical behaviour when editing the Agenda Item Name or Short Name fields in an Item.
Normally the Short Name field, which is used for "Bookmark title" in the PDF document output, will be populated the same as the Agenda Item Name given when the Item was created. Subsequent changes to the Agenda Item Name should update the Short Name field when the page is saved and refreshed.
However, if the Short Name field is edited separately and then the page saved, it will be different to the Agenda Item Name and remains as edited.
If this occurs and you want the two fields to match again, just edit the Short Name field to match the Agenda Item Name and Save Changes.