Within an upgraded environment from 2009 to 2013sp1, there are components that have an approval status "Live", the schema, that these components are based on was associated with a workflow process in the past. the workflow association has been removed from the schema (not recently)
After saving the component in 2013sp1 environment, the approval status of the components is set to "Unapproved" by the system. this isn't the case in a 2009 env.
In the CM db there is no references in the workflow related tables, in the ITEMS table is the only reference to the approval status.
Is the "Unapproved" status set by the system a default value? and is it configurable?
Update
Hotfix available on tridionworld: CM_2013.1.0.88203