PDM Enterprise has another bug in 2008 SP4 If you have custom
properties with values in the configuration specific custom
properties Default configuration and then later delete the custom
properties from the Default configuration in the model and put the
values in the custom properties in the model (the @ custom property
tab in the data card) the old values that were in the Default
configuration are still in the data card, I had to manually delete
the values from the Default configuration in the Data card.