Export data from a DB2 to import into an Oracle DB (unfortunately, I cannot access it from DbVis anymore) to create test data
I use "export selection" on a table with SQL option, the schema name not only gets put to the qualifier field but also to the table name field - see the violet marked places of the attached picture.
The table name of the table selected for export gets written into the table name field.
I did not check whether this is new behaviour to 12 or whether it was already present in versions before.
Sorry for the late response .. I am unable to reproduce this but will register an issue and make sure we look into it.