Bug: new_edit_state creates invalid lineage entries for new states during compress
** This issue is addressed in ArcSDE 9.1 Service Pack 1 (SP1) **
If compress is trimming a given lineage in which a new state is being created and deriving its lineage, it can be created with lineage_id values which reference deleted states.
Click on the link in Related Information below to download the Service Pack, if necessary. **