Incorrect variable assignment in st_type_export.validate_spref prevents user schemas from being imported correctly without errors

Description

When using Oracle's Data Pump Import utility with the option to import an entire schema, which includes tables with st_geometry attributes and spatial indexes, the Oracle error ORA-20091 may occur.

Cause

Using the Oracle Data Pump Import utility or the original import utility, the Oracle error ORA-20091 may occur.

The reason of the cause is an invalid variable assignment within st_type_export.validate_spref.

This is a specific problem introduced in ArcGIS 9.2 Service Pack 5.

Workaround